Monday, December 20, 2010

Carrier Chillers 30GB040 - 30GT225-280 Error Code

2 komentar
Display = 51
Description Of Failure
30GB
= Compressor
040 to 60 = 1
070 = 1
075 to 100 = 1
110 to 150 = 1
175-200 = 1
30GT
225 to 280 = A1 Failure
ACTION TAKE BY CONTROL = Circuit 1 or Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module.


Display = 52
Description Of Failure
30GB
= Compressor
040 to 60 =
070 = 2
075 to 100 = 2
110 to 150 = 2
175-200 = 2
30GT
225 to 280 = A2 Failure
ACTION TAKE BY CONTROL = Compressor Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 53
Description Of Failure
30GB
= Compressor
040 to 60 =
070 =
075 to 100 =
110 to 150 = 3
175-200 = 3
30GT
225 to 280 = A3 Failure
ACTION TAKE BY CONTROL = Compressor shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 54
Description Of Failure
30GB
= Compressor
040 to 60 =
070 =
075 to 100 =
110 to 150 =
175-200 = 4
30GT
225 to 280 = A4 Failure
ACTION TAKE BY CONTROL = Compressor shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 55
Description Of Failure
30GB
= Compressor
040 to 60 = 2
070 = 3
075 to 100 = 3
110 to 150 = 4
175-200 = 5
30GT
225 to 280 = B1 Failure
ACTION TAKE BY CONTROL = Circuit 2 or B shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 56
Description Of Failure
30GB
= Compressor
040 to 60 =
070 =
075 to 100 = 4
110 to 150 = 5
175-200 = 6
30GT
225 to 280 = B2 Failure
ACTION TAKE BY CONTROL = Comprssor shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 57
Description Of Failure
30GB
= Compressor
040 to 60 =
070 =
075 to 100 =
110 to 150 = 6
175-200 = 7
30GT
225 to 280 = B4 Failure
ACTION TAKE BY CONTROL = Compressor shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 58
Description Of Failure
30GB
= Compressor
040 to 60 =
070 =
075 to 100 =
110 to 150 =
175-200 = 8
30GT
225 to 280 = B4 Failure
ACTION TAKE BY CONTROL = Compressor shut off
RESET METHOD = Manual
PROBABLE CAUSE = High-Pressure Swicth Trip or High Discharge gas temperature swicth Trip, or Compressor ground current >2 5 amp or Compressor board relay on.
When it is not supposed to be on, wiring error between electronic control and Compressor protection module

Display = 59
Description Of Failure = Loss of charge Circuit 1 or A
ACTION TAKE BY CONTROL = Circuit 1 or A Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Low refrigerant charge, or low pressure Swicth Failure

Display = 60
Description Of Failure = Loss of Charge Circuit 2 or B
ACTION TAKE BY CONTROL = Circuit 2 or B Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Low refrigerant charge, or low pressure Swicth Failure

Display = 61
Description Of Failure = Low Cooler Flow
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = No Cooler flow or reversed cooler flow

Display = 63
Description Of Failure = Low oil pressure circuit 1 or A
ACTION TAKE BY CONTROL = Circuit 1 or A Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Oil pump failure or low oil level, or swicth failure or Compressor CB Tripped

Display = 64
Description Of Failure = Low oil pressure circuit 2 or B
ACTION TAKE BY CONTROL = Circuit 2 or B Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Oil pump failure or low oil level, or swicth failure or Compressor CB Tripped

Display = 65
Description Of Failure = Freeze Protection
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Low Cooler Flow

Display = 66
Description Of Failure = High Suction Supeheat Circuit 1 or A
ACTION TAKE BY CONTROL = Circuit 1 or A Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Low Charge or Plugged Filter Drier or EXV Failure or Bad Thermistor

Display = 67
Description Of Failure = High Suction Supeheat Circuit 2 or B
ACTION TAKE BY CONTROL = Circuit 2 or B Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = Low Charge or Plugged Filter Drier or EXV Failure or Bad Thermistor

Display = 68
Description Of Failure = Low Suction Superheat Circuit 1or A
ACTION TAKE BY CONTROL = Circuit 1 or A Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = EXV Failure or Bad Thermistor

Display = 69
Description Of Failure = Low Suction Superheat Circuit 2 or B
ACTION TAKE BY CONTROL = Circuit 2 or B Shut Off
RESET METHOD = Manual
PROBABLE CAUSE = EXV Failure or Bad Thermistor

Display = 70
Description Of Failure = Illegal Unit Configuration
ACTION TAKE BY CONTROL = Unit Will Not Start
RESET METHOD = Manuat
PROBABLE CAUSE = Configuration Error (See Note 3)

Display = 71
Description Of Failure = Leaving Water Thermistor Failure
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board.

Display = 72
Description Of Failure = Entering Water Thermistor Failure
ACTION TAKE BY CONTROL = Use Default Value
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 75
Description Of Failure = Saturated Cond Thermistor Failure Circuit 1 or A
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 76
Description Of Failure = Saturated Cond Thermistor Failure Circuit 2 or B
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 77
Description Of Failure = Cooler Thermistor Failure Circuit 1 or A
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 78
Description Of Failure = Cooler Thermistor Failure Circuit 2 or B
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 79
Description Of Failure = Compressor Thermistor Failure Circuit 1 or A
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 80
Description Of Failure = Compressor Thermistor Failure Circuit 2 or B
ACTION TAKE BY CONTROL = Unit Shut Off
RESET METHOD = Auto
PROBABLE CAUSE = Thermistor Failure or Wiring Error, or Thermistor not connected to Processor Board

Display = 81
Description Of Failure = Reset Temperature Failure
ACTION TAKE BY CONTROL = Stop Reset
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 82
Description Of Failure = Leaving Water Set Point Potentiometer Failure
ACTION TAKE BY CONTROL = Use Default Value
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 84
Description Of Failure = Reset Limit Set Point Potentiometer Failure
ACTION TAKE BY CONTROL = Stop Reset
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 85
Description Of Failure = Demand Limit Potentiometer Failure
ACTION TAKE BY CONTROL = Stop Demand Limit
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 86
Description Of Failure = Reset Ratio Potentiometer Failure
ACTION TAKE BY CONTROL = Stop Reset
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 87
Description Of Failure = Reset Set Point Potentiometer Failure
ACTION TAKE BY CONTROL = Stop Reset
RESET METHOD = Auto
PROBABLE CAUSE = Potentiometer improperly connected or Potentiometer setting out of range or Potentiometer Failure or Wiring Error

Display = 83
Description Of Failure = None
ACTION TAKE BY CONTROL = Unit Operated Normally
RESET METHOD =
PROBABLE CAUSE = Wrong EPROM

NOTES
1. In 30GT225-280 units Circuit 1 is Circuit A and Circuit 2 is Circuit B
2. Freeze protection trips at 35F (17C) for water and 6F (33C) below set point for brine units Resets at 6F (33C) above set point
3. Illegal unit configuration caused by missing programmableheader or both unloader dip switches on
4. All AUTO reset failure that cause the unit to stop will restart the unit when the error has been corrected
5. All manual reset errors must be reset by turning the control circuit breaker off and on
6. Valid resistant range for thermistor in 362939 OHM to 216 65 OHM
Read More ->>

Tuesday, December 7, 2010

Amana PTAC R410A Error Code

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CODE = FP
Modes
STATUS = Freeze Protection Engaged. The room temperature measured by the wireless remote thermostat or indoor ambient thermistor active sensor falls below 40°F.
DISPLAY = Y
ERROR LIGHT = N
SUGGESTED ACTION = No Action required. This setting will disengage when the room temperature rises above 43°F

CODE = Fd
Modes
STATUS = Front Desk switch is closed. All outputs are switched off.
DISPLAY = Y
ERROR LIGHT = N
SUGGESTED ACTION = Open front desk switch to allow occupant unit operation.

CODE = Eo
Modes
STATUS = Un-Configured Service Board - All operation held awaiting configuration
DISPLAY = Y
ERROR LIGHT = Y
SUGGESTED ACTION = Enter Configuration Menu and set "C3" to "C" for coolers with electric heat or "H" for heat pumps.

CODE = EH
Modes
STATUS = Emeregency Hydronic Engaged. The EHH switch is closed. Compressor is switched off.
DISPLAY = Y
ERROR LIGHT = N
SUGGESTED ACTION = Open front emergency hydronic switch to allow occupant unit operation.

CODE = LS
Modes
STATUS = Load Shedding Engaged. The LS switch is closed. Compressor and Electric heat is switched off.
DISPLAY = Y
ERROR LIGHT = N
SUGGESTED ACTION = Open load shedding switch to allow occupant unit operation.

CODE = On
Modes
STATUS = Control is configured to respond to a wired thermostat
DISPLAY = Y
ERROR LIGHT = N
SUGGESTED ACTION = No action if a wired thermostat is being used. Otherwise, see Configuration Settings.

CODE = F1
FAILURES
STATUS = Indoor Ambient Thermistor reads outside the range -20°F to 200°F & the wireless thermostat is not communicating to the unit control or
DISPLAY = Y
ERROR LIGHT = Y
SUGGESTED ACTION = Replace black Indoor Ambient Thermistor or Wireless Remote Thermostat.

CODE = F1
FAILURES
STATUS = Indoor Ambient Thermistor (IAT) without a wireless remote thermostat reads outside the range -20°F to 200°F.
DISPLAY = Y
ERROR LIGHT = Y
SUGGESTED ACTION = Replace black Indoor Ambient Thermistor or Wireless Remote Thermostat.

CODE = F2
FAILURES
STATUS = Wireless Remote Thermostat failure
DISPLAY = N
ERROR LIGHT = N
SUGGESTED ACTION = Replace Wireless Thermostat.

CODE = F3
FAILURES
STATUS = Indoor Ambient Thermistor reads outside the range -20°F to 200°F
DISPLAY = Y
ERROR LIGHT = N
SUGGESTED ACTION = Replace black Indoor Ambient Thermistor.

CODE = F4
FAILURES
STATUS = Indoor Coil Thermistor either above or below operating tolerance
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Replace Red Indoor Coil Thermistor .

CODE = F5
FAILURES
STATUS = Wireless Thermostat failure.
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Attempt to rebind Wireless Thermostat or Replace Wireless Thermostat.

CODE = F6
FAILURES
STATUS = Indoor Discharge Thermistor either above or below operating tolerances.
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Replace Yellow Indoor Discharge Thermistor.

CODE = Fb
FAILURES
STATUS = Low Remote Battery Warning
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Replace Batteries in Wireless Devices.

CODE = H1
FAILURES
STATUS = High Voltage Protection engaged. Power supply voltage is to high.
DISPLAY = Y
ERROR LIGHT = N
SUGGESTED ACTION = Check for incoming power at correct voltage.

CODE = br
FAILURES
STATUS = Brown Out Protection engaged. Power was lost or voltage is low.
DISPLAY = N
ERROR LIGHT = N
SUGGESTED ACTION = Check for incoming power at correct voltage.

CODE = L6
AIRFLOW ALERT
STATUS = Discharge Air Too Hot.
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Clean Filter or Remove Air Blockage

CODE = LC
AIRFLOW ALERT
STATUS = Outdoor Coil Thermistor temperature high.
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Clean Condenser Coils, Check Fan for fault. Code will reset after cleaning.

CODE = C2
AIRFLOW ALERT
STATUS = Indoor Air Recirculation. Large delta between thermostat and return.
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Clean Condenser Coils, Check Fan for fault. Code will reset after cleaning.

CODE = C5
AIRFLOW ALERT
STATUS = Outdoor Coil temperature too high for outdoor ambient temperature.
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Check for Blocked Outdoor Air or Clean Coil.

CODE = C3
REFRIGERATION ALERT
STATUS = Indoor Coil is freezing up.
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube.

CODE = C4
REFRIGERATION ALERT
STATUS = Indoor Coil froze up.
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Clean filter, Check for fan and blower operation, Check for Refrigerant loss or Restricted capillary tube.

CODE = C6
REFRIGERATION ALERT
STATUS = Poor Unit Performance.
DISPLAY = N
ERROR LIGHT = Y
SUGGESTED ACTION = Check for blower motor, compressor, or electric heat operation.
Read More ->>

Monday, December 6, 2010

McQuay MWH-C-2009 Error Code

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MODEL :
MWH008C/CR MWH010C/CR MWH013C/CR
MWH015C/CR MWH020C/CR MWH025C/CR
MWH028C/CR MWH030C/CR MWH040C/CR
MWH050C/CR MWH060C/CR MWH065C/CR
MWH070C/CR

Troubleshooting
Should a major problem develop, refer to the following information for possible cause and corrective steps:

Neither fan nor compressor runs (No power supply)

1. The fuse may be blown or the circuit Breaker is open. Check electrical circuits and motor windings for shorts or grounds.
Investigate for possible overloading.
Replace fuse or reset circuit Breakers after fault is corrected.
2. Wires may be loose or broken. Tighten or replace.
3. Supply voltage may be too low. Check it with the power company.
4. Control system may be faulty. Check thermostat for correct wiring and check 24 volt transformer for burnout.

Fan runs but compressor does not run

1. Check compressor capacitor.
2. Wires may be loose or broken. Tighten or replace.
3. The high pressure switch may have tripped due to:
a) Fouled or plugged condenser;
b) Lack of or no condenser water;
c) Too warm condenser water;
d) Not enough airflow over the coil due to dirty filters.
5. Check thermostat setting, calibration and wiring.
6. The compressor overload protection is open. If the compressor dome is extremely hot, the overload will not reset
until cooled down. If the overload is external, replace it. If the overload is internal, replace the compressor.
7. The compressor winding may be open. Check continuity with ohmmeter. If the winding is open, replace the
compressor.

Compressor attempts to start but is not successful

1. Check continuity for contactor.
2. High pressure trip check.
3. High superheat results in high discharge temperature.
4. Lack of refrigerant.

Compressor stops after short run

1. Check thermostat setting.
2. Check system pressure.
3. Refer to troubleshooting-3 possible causes.

Insufficient cooling or heating

1. Check thermostat setting.
2. Airflow may be insufficient. Check and clean the filter.
3. The reversing valve may defects, creating a bypass of refrigerant. If the unit will heat, check the reversing valve
coil.
4. Check capillary tubes for possible chock of refrigerant flow.
5. Check if any block in water flow or if the water is dirty.
6. Lack of refrigerant.

Insufficient water flow through condenser (tube in tube)

1. Check whether valves are opened.
2. Check for air is trapped in piping.
3. Check circulating pumps.
4. Check if correct water pump sizing.

Water dripping

1. Check condensate drain.
2. Check for dirty filter.
3. Check to see if condensate drain runs uphill.
4. See if blower motor is up to speed.
5. Check for blower position.
6. Are drain pipe properly trapped?

Noisy unit operation

1. Check for fan wheel whether it is hitting the housing.
2. Check if any dented fan wheel.
3. Check if there is loose fan wheel on shaft.
4. Check if any tubing is touching the compressor. Readjust tubing by bending slightly.
5. Check all screws on panels.
6. Check water flow rate.

Controller Error Code
Error code - Causes
E1 Compressor2 low pressure faulty
E2 Compressor2 high pressure faulty
E3 Compressor2 overload
E4 Indoor coil2 temperature sensor fault
E5 System 2 leaving water temperature2 faulty
F2 Indoor coil1 temperature sensor fault
F4 Return air temperature sensor fault
F6 Communication faulty
F9 Compressor1 refrigerant leak
FE Compressor2 refrigerant leak
H1 Compressor1 overload
H4 Compressor1 high pressure faulty
L1 Compressor1 low pressure faulty
L3 Temperature of water entering too high or low
L4 Water flow switch faulty
L5 System 1 leaving water temperature1 faulty
Read More ->>

Sunday, December 5, 2010

Sanyo KS0971 KS1271 Error Code

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Since the indications cover various units, the corresponding parts listed below may not be present in some models.
A = OFF B = Blinking C = ON (Illuminated)

Indication on indoor unit
Qutlet (3) = A
Timer (2) = A
Operation (1) = B
Code = S01
Diagnotice item = Room temperature sensor failure
Diagnotics contents
(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(short-circuit detection only for the humidity sensor)
(3) Indoor/outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = A
Timer (2) = B
Operation (1) = A
Code = S02
Diagnotice item = Indoor heat exchanger sensor failure
Diagnotics contents
(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(short-circuit detection only for the humidity sensor)
(3) Indoor/outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = A
Timer (2) = B
Operation (1) = B
Code = S03
Diagnotice item = Humidity sensor failure
Diagnotics contents
(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(short-circuit detection only for the humidity sensor)
(3) Indoor/outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = B
Timer (2) = A
Operation (1) = A
Code = S04
Diagnotice item = Compressor temperature sensor failure
Diagnotics contents
(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(3) Outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = B
Timer (2) = A
Operation (1) = B
Code = S05
Diagnotice item = Outdoor heat exchanger sensor failure
Diagnotics contents
(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(3) Outdoor circuit board failure


Indication on indoor unit
Qutlet (3) = B
Timer (2) = B
Operation (1) = A
Code = S06
Diagnotice item = Outdoor air temperature sensor failure
Diagnotics contents
(1) Sensor open circuit or short circuit
(2) Contact failure at connector or open circuit at terminal crimping location
(3) Outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = B
Timer (2) = B
Operation (1) = B
Code = S07
Diagnotice item = Outdoor electrical current detection failure
Diagnotics contents = Outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = A
Timer (2) = A
Operation (1) = C
Code = E01
Diagnotice item = Indoor/outdoor communications failure (serial communications)
Diagnotics contents
(1) Mis-wiring (2) AC power failure (3) Blown fuse (4) Power relay failure
(5) Indoor or outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = A
Timer (2) = C
Operation (1) = A
Code = E02
Diagnotice item = • HIC circuit failure • Power Tr (transistor) circuit failure
Diagnotics contents
(1) HIC or power Tr failure (2) Outdoor fan does not turn. (3) Instantaneous power outage
(4) Service valve not opened. (5) Outdoor fan blocked. (6) Continuous overload operation
(7) Compressor failure (8) Outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = A
Timer (2) = C
Operation (1) = C
Code = E03
Diagnotice item = Outdoor unit external ROM (OTP data) failure
Diagnotics contents = (1) External ROM data failure (2) Outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = C
Timer (2) = A
Operation (1) = A
Code = E04
Diagnotice item = Peak current cut-off
Diagnotics contents
(1) Instantaneous power outage (2) HIC or power transistor failure
(3) Outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = C
Timer (2) = A
Operation (1) = C
Code = E05
Diagnotice item = .PAM circuit failure .Active circuit failure
Diagnotics contents
(1) Outdoor circuit board failure (2) Outdoor power supply voltage failure

Indication on indoor unit
Qutlet (3) = C
Timer (2) = C
Operation (1) = A
Code = E06
Diagnotice item = Compressor discharge overheat prevention activated.
Diagnotics contents
(1) Electric expansion valve failure (2) Capillaries choked (3) Shortage of refrigerant
(4) Continuous overload operation (5) Outdoor fan does not rotate (6) Outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = C
Timer (2) = C
Operation (1) = C
Code = E07
Diagnotice item = Indoor fan operating failure
Diagnotics contents = (1) Fan motor failure (2) Contact failure at connector (3) Indoor circuit board failure

Indication on indoor unit
Qutlet (3) = B
Timer (2) = B
Operation (1) = C
Code = E08
Diagnotice item = -4-way valve switching failure -Indoor zero-cross failure
Diagnotics contents
(1) 4-way valve failure (heat pump model only)
(2) Outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = B
Timer (2) = C
Operation (1) = B
Code = E09
Diagnotice item = No-refrigerant protection
Diagnotics contents
(1) Service valve not opened. (2) Shortage of refrigerant

Indication on indoor unit
Qutlet (3) = B
Timer (2) = C
Operation (1) = C
Code = E10
Diagnotice item = DC compressor drive circuit failure
Diagnotics contents = (1) Open phase (2) Outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = C
Timer (2) = B
Operation (1) = B
Code = E11
Diagnotice item = Outdoor fan operating failure
Diagnotics contents = (1) Fan motor failure (2) Contact failure at connector (3) Outdoor circuit board failure

Indication on indoor unit
Qutlet (3) = C
Timer (2) = B
Operation (1) = C
Code = E12
Diagnotice item
Outdoor system communications failure.
Outdoor high-pressure SW.
OLR operation.
Outdoor power supply open phase.
Outdoor coil freezing.
Diagnotics contents
(1) Mis-wiring (2) Blown fuse (3) Power relay failure (4) Open phase
(5) Outdoor circuit board failure (6) Compressor failure

Indication on indoor unit
Qutlet (3) = C
Timer (2) = C
Operation (1) = B
Code = E13
Diagnotice item = Freeze-prevention operation activated
Diagnotics contents
(1) Indoor fan system failure (2) Shortage of refrigerant (3) Low-temperature operation
Read More ->>

Tuesday, November 23, 2010

Fujitsu Consealed Ceiling Error Code

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Indoor unit

Error contents
Communication error = Indoor unit - Outdoor unit
Indoor unit LED
OPERATION (Red) = off
TIMER (Green) = 2 - 5 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 01

Error contents
Communication error = Indoor unit - Wired remote controller
Indoor unit LED
OPERATION (Red) = off
TIMER (Green) = 8 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 00

Error contents
Indoor unit temperature error = Room temp. sensor error
Indoor unit LED
OPERATION (Red) = 2 flashes
TIMER (Green) = 2 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 02 or 03

Error contents
Indoor unit temperature error = Heat exchanger temp. sensor error
Indoor unit LED
OPERATION (Red) = 2 flashes
TIMER (Green) = 3 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 04 or 05

Error contents
Outdoor unit temperature error = Discharge pipe temp. sensor error
Indoor unit LED
OPERATION (Red) = 3 flashes
TIMER (Green) = 2 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 0C or 0d

Error contents
Outdoor unit temperature error = Heat exchanger temp. sensor error
Indoor unit LED
OPERATION (Red) = 3 flashes
TIMER (Green) = 3 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 06 or 07

Error contents
Outdoor unit temperature error = Outdoor temp. sensor error
Indoor unit LED
OPERATION (Red) = 3 flashes
TIMER (Green) = 4 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 0A or 0b

Error contents
Outdoor unit temperature error = 2 way valve temp. sensor error
Indoor unit LED
OPERATION (Red) = 3 flashes
TIMER (Green) = off
AIR CLEAN or QUIET (Green) = 2 flashes
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 1d

Error contents
Outdoor unit temperature error = 3 way valve temp. sensor error
Indoor unit LED
OPERATION (Red) = 3 flashes
TIMER (Green) = off
AIR CLEAN or QUIET (Green) = 3 flashes
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 1E

Error contents
Outdoor unit temperature error = Heat sinnk temp. sensor error
Indoor unit LED
OPERATION (Red) = 3 flashes
TIMER (Green) = 7 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 0E

Error contents
Outdoor unit temperature error = Compressor temp. sensor error
Indoor unit LED
OPERATION (Red) = 3 flashes
TIMER (Green) = 8 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 15

Error contents
Indoor unit control system error = MANUAL AUTO button error
Indoor unit LED
OPERATION (Red) = 4 flashes
TIMER (Green) = 2 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 20

Error contents
Indoor unit control system error = 50Hz / 60Hz distinguish error
Indoor unit LED
OPERATION (Red) = 4 flashes
TIMER (Green) = 4 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = ----

Error contents
Indoor unit control system error = Electronic Air clean filter error
Indoor unit LED
OPERATION (Red) = 4 flashes
TIMER (Green) = 7 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 21

Error contents
Indoor unit control system error = Electronic Air clean filter error
Indoor unit LED
OPERATION (Red) = 4 flashes
TIMER (Green) = 8 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 22

Error contents
Outdoor unit control system error = Current trip error
Indoor unit LED
OPERATION (Red) = 5 flashes
TIMER (Green) = 2 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 17

Error contents
Outdoor unit control system error = CT error
Indoor unit LED
OPERATION (Red) = 5 flashes
TIMER (Green) = 3 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 18

Error contents
Outdoor unit control system error = Compressor position error
Indoor unit LED
OPERATION (Red) = 5 flashes
TIMER (Green) = 5 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 1A

Error contents
Outdoor unit control system error = Fan motor error
Indoor unit LED
OPERATION (Red) = 5 flashes
TIMER (Green) = 6 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 1b

Error contents
Outdoor unit control system error = Connected indoor unit error
Indoor unit LED
OPERATION (Red) = 5 flashes
TIMER (Green) = 7 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 1F

Error contents
Outdoor unit control system error = Main CPU - sub CPU communication error
Indoor unit LED
OPERATION (Red) = 5 flashes
TIMER (Green) = 8 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 1C

Error contents
Indoor unit fan motor error = Fan motor error
Indoor unit LED
OPERATION (Red) = 6 flashes
TIMER (Green) = 2 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 12

Error contents
Indoor unit fan motor error = Fan motor error
Indoor unit LED
OPERATION (Red) = 6 flashes
TIMER (Green) = 3 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 12


Error contents
Refrigerant system error = Discharge pipe temp. error
Indoor unit LED
OPERATION (Red) = 7 flashes
TIMER (Green) = 2 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 0F

Error contents
Refrigerant system error = High pressure error
Indoor unit LED
OPERATION (Red) = 7 flashes
TIMER (Green) = 3 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 14

Error contents
Refrigerant system error = High pressure switch error
Indoor unit LED
OPERATION (Red) = 7 flashes
TIMER (Green) = 6 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 16

Error contents
Added function error = Active filter error
Indoor unit LED
OPERATION (Red) = 8 flashes
TIMER (Green) = 2 - 3 flashes
AIR CLEAN or QUIET (Green) = off
COIL DRY (Orange) = off
Wired remote controller display (option)
CODE No. = 19

Error contents
Indoor unit connect error = Indoor unit model error
Indoor unit LED
OPERATION (Red) = blinking
TIMER (Green) = blinking
AIR CLEAN or QUIET (Green) = blinking
COIL DRY (Orange) = blinking
Wired remote controller display (option)
CODE No. = 11


OUTDOOR UNIT
x = Slow flashing
y = Off

Communication error (indoor unit A to outdoor unit)
LED 1 = x 1 time
LED 2 = y
LED 3 = y
LED 4 = y

Communication error (indoor unit B to outdoor unit)
LED 1 = y
LED 2 = x 1 time
LED 3 = y
LED 4 = y

Communication error (indoor unit C to outdoor unit)
LED 1 = y
LED 2 =
LED 3 = x 1 time
LED 4 = y

Communication error (indoor unit D to outdoor unit)
LED 1 = y
LED 2 = y
LED 3 = y
LED 4 = x 1 time

Discharge pipe temperature sensor
LED 1 = x 2 times
LED 2 = y
LED 3 = y
LED 4 = y

Outdoor heat exchanger temperature sensor
LED 1 = x 3 times
LED 2 = y
LED 3 = y
LED 4 = y

Outdoor temperature sensor
LED 1 = x 4 times
LED 2 = y
LED 3 = y
LED 4 = y

Outdoor 2way valve(A) temperature sensor
LED 1 = x 5 times
LED 2 = y
LED 3 = y
LED 4 = y

Outdoor 2way valve(B) temperature sensor
LED 1 = y
LED 2 = x times
LED 3 = y
LED 4 = y

Outdoor 2way valve(C) temperature sensor
LED 1 = y
LED 2 = y
LED 3 = x 5 times
LED 4 = y

Outdoor 2way valve(D) temperature sensor
LED 1 = y
LED 2 = y
LED 3 = y
LED 4 = x 5 times

Outdoor 3way valve(A) temperature sensor
LED 1 = x 6 times
LED 2 = y
LED 3 = y
LED 4 = y

Outdoor 3way valve(B) temperature sensor
LED 1 = y
LED 2 = x 6 times
LED 3 = y
LED 4 = y

Outdoor 3way valve(C) temperature sensor
LED 1 = y
LED 2 = y
LED 3 = x 6 times
LED 4 = y

Outdoor 3way valve(D) temperature sensor
LED 1 = y
LED 2 = y
LED 3 = y
LED 4 = x 6 times

Compressor temperature sensor
LED 1 = x 7 times
LED 2 = y
LED 3 = y
LED 4 = y

Heatsink temperature sensor
LED 1 = x 8 times
LED 2 = y
LED 3 = y
LED 4 = y

Pressure switch A abnormal
LED 1 = x 9 times
LED 2 = y
LED 3 = y
LED 4 = y

Pressure switch B abnormal
LED 1 = x 10 times
LED 2 = y
LED 3 = y
LED 4 = y

Indoor unit connection capacity error
LED 1 = x 11 times
LED 2 = y
LED 3 = y
LED 4 = y

IPM error
LED 1 = x 12 times
LED 2 = y
LED 3 = y
LED 4 = y

Comoressor loter location error
LED 1 = x 13 times
LED 2 = y
LED 3 = y
LED 4 = y

Compressor can not start to operate
LED 1 = x 14 times
LED 2 = y
LED 3 = y
LED 4 = y

Outdoor fan (upper) motor error
LED 1 = x 15 times
LED 2 = y
LED 3 = y
LED 4 = y

Outdoor fan (lower) motor error
LED 1 = x 16 times
LED 2 = y
LED 3 = y
LED 4 = y

Microcomputer error
LED 1 = x 17 times
LED 2 = y
LED 3 = y
LED 4 = y
Read More ->>

Sunday, November 21, 2010

VRF Trouble Shooting – Fujitsu

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VRF Trouble Shooting – Fujitsu

Pipework
• Always check that the pipework follows the limitations in the corresponding user guides
• Use of dry nitrogen while brazing or when pipework open to atmosphere is vitale
• Always use a good electronic Torr gauge such as 617981 while evacuating
• If multiple indoor units are low on capacity, system is probably undercharged
• If one indoor unit is low on capacity, strainer is probably blocked
Outdoor Unit
• Gas pressures are frequently a bad guide to system gas charge
• Check the condensor coil is not blocked and airflow not impeded
• Make sure system is not over indexed if all indoor units are in the same area (inverter models)
Indoor Units & Heat Recovery (HR & RB) Boxes
• These items have pipework strainers which can, and do, block. Check these first.
• Temperature difference between return and supply air of 10C cooling/15C heating indicates system ok
• Always check condition of return air filters and clean if necessary
Controllers and Wiring
• All VRF systems have self diagnostics at the controller - see below
• Ensure control wiring is run in screened cable without exception (1mm 2 core CY suggested)
• Ensure screened cable is Earthed at one end only

Fault Diagnostic Codes
Fujitsu J Series and Airstage follow the fault codes below -
Indoor Fault Codes - access from handset • LED Codes refer to flash type

Handset = E:00
Red LED =
Green LED =
Yellow LED = No Fault Currently
Meaning =
Remedy = Run system again

Handset = E:02
Red LED = Rapid
Green LED = Rapid
Yellow LED = Model Abnormal
Meaning =
Remedy = Check DIP switches

Handset = E:03
Red LED = 5 times
Green LED = Rapid
Yellow LED = 2 times
Meaning = Processor Failure
Remedy = PCB failure

Handset = E:04
Red LED = Rapid
Green LED = Rapid
Yellow LED = Rapid
Meaning = Power Abnormal
Remedy = Swap 2 phases

Handset = E:06
Red LED = Rapid
Green LED = 4 times
Yellow LED = 1 TIme
Meaning = EEPROM Error
Remedy = PCB Failure

Handset = E:07
Red LED = Rapid
Green LED = 4 time
Yellow LED = 2 Times
Meaning = EEPROM Error
Remedy = PCB Failure

Handset = E:09
Red LED = 2 times
Green LED =
Yellow LED =
Meaning = Room Sensor Failure
Remedy = Check/Replace

Handset = E:0A
Red LED = 3 times
Green LED = Rapid
Yellow LED = 1 Time
Meaning = Middle Pipe Sensor Fail
Remedy = Check/Replace

Handset = E:0b
Red LED = 3 times
Green LED = Rapid
Yellow LED = 2 Times
Meaning = Inlet Pipe Sensor Fail
Remedy = Check/Replace

Handset = E:0C
Red LED = 3 times
Green LED = Rapid
Yellow LED = 3 Times
Meaning = Outlet Pipe Sensor Fail
Remedy = Check/Replace

Handset = E:0d
Red LED = 7 times
Green LED = Rapid
Yellow LED =
Meaning = Fan Temp Sensor Fail
Remedy = Check/Replace

Handset = E:11
Red LED = 4 times
Green LED = Rapid
Yellow LED =
Meaning = Drainage Failure
Remedy = Drains/Float Sw/Pump

Handset = E:12
Red LED = Rapid
Green LED = 7 times
Yellow LED =
Meaning = Room Temp too high/low
Remedy = Is unit over/Undersized

Handset = E:13
Red LED = 6 times
Green LED = Rapid
Yellow LED =
Meaning = Fan Failure
Remedy = Check filters/motor

Handset = E:18
Red LED = 5 times
Green LED = Rapid
Yellow LED = 1 or 4 Times
Meaning = Control Comms Failure
Remedy = Check Controller Wiring

Handset = E:1F
Red LED = Rapid
Green LED = 5 times
Yellow LED = 1 TIme
Meaning = Transmission Failure
Remedy = Check Control Wiring

Handset = E:20
Red LED = Rapid
Green LED = 5 times
Yellow LED = 2 Times
Meaning = Node Error
Remedy = Check Control Wiring

Handset = E:21
Red LED = Rapid
Green LED = 6 times
Yellow LED =
Meaning = Parralel Comms Error
Remedy = Check Control Wiring

Handset = E:32
Red LED = Rapid
Green LED = 7 times
Yellow LED =
Meaning = Outdoor Unit Error
Remedy = Check Outdoor Unit

Outdoor Codes - On Outdoor PCB • When LED1 flashes rapidly the other LEDS below -

LED = 1 flash
1 = Rapid
2 = Comp1 Fail
3 = Dis Sens1
4 = Dis Press
5 = Phase Fail
6 = ID Unit Fail

LED = 2 flashes
1 = Rapid
2 = Comp2 Fail
3 = Dis Sens2
4 = Liq Press
5 = Power Freq
6 = ID1 Fail

LED = 3 flashes
1 = Rapid
2 = Comp3 Fail
3 = Dis Sens3
4 =
5 = PCB Fail
6 = ID1 Fail

LED = 4 flashes
1 = Rapid
2 = Dis Temp1
3 = In Pipe1
4 = Comp Seize
5 = PCB Fail
6 = ID1 Fail

LED = 5 flashes
1 = Rapid
2 = Dis Temp2
3 = In Pipe2
4 = Hi Current
5 =
6 = ID1 Fail

LED = 6 flashes
1 = Rapid
2 = Dis Temp3
3 = In Pipe3
4 = CT Error
5 = PCB Fail
6 = ID1 Fail

LED = 7 flashes
1 = Rapid
2 = HP Trip
3 = Out Pipe1
4 = Oil Low
5 = PCB Fail
6 = ID1 Fail

LED = 8 flashes
1 = Rapid
2 = LP Trip
3 = Out Pipe2
4 =
5 = Comms Fail
6 = ID1 Fail

LED = 9 flashes
1 = Rapid
2 = Pump
3 = Out Pipe3
4 = L startup
5 = Comms Fail
6 =

LED = 10 flashes
1 = Rapid
2 = Down
3 = Suct Pipe
4 =
5 =
6 = ID1 Fail

LED = 11 flashes
1 = Rapid
2 = Error
3 = Air Sensor
4 =
5 =
6 =

If all PCB’s flash rapidly check DIP switch settings
Read More ->>

Saturday, November 20, 2010

Panasonic Fault codes - FS Series

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Fault Codes – FS Series
Current Models R410a
Pressing Check on the wired remote while CHECK is flashing will give the Fault and the address of the unit with the Fault
Pressing Timer Set with the fault displayed will display a second code giving further information (detail code)
Pressing Check for 5 seconds will check past faults
On wireless handsets press the temp up for 5 seconds to enter error check mod
Scroll through the codes using the temp up button until a beep is heard from the indoor unit
Press set and repeat until the full code is displayed

F Code Display = F15
Detail Display = 01
Outdoor LED
302 =
303 = Flash
304 = Flash
305 = Flash
306 = Flash
307 = See Note 1
308 = See Note 1
309 =
Measurig Fault Code = Drain Failure

F Code Display = F16
Detail Display = 01
Outdoor LED
302 =
303 =
304 =
305 =
306 =
307 = Flash
308 = See Note 1
309 = See Note 1
Measurig Fault Code = Louvre Failure

F Code Display = F17
Detail Display = 01
Outdoor LED
302 =
303 =
304 =
305 =
306 =
307 =
308 = See Note 1
309 = See Note 1
Measurig Fault Code = Option Problem

F Code Display = F17
Detail Display = 02
Outdoor LED
302 = Flash
303 = Flash
304 =
305 =
306 =
307 = Flash
308 = See Note 1
309 = See Note 1
Measurig Fault Code = DC Fan Motor Failure

F Code Display = F20
Detail Display = 01
Outdoor LED
302 =
303 =
304 =
305 = Flash
306 =
307 = Flash
308 = See Note 1
309 = See Note 1
Measurig Fault Code = ID Air Sensor

F Code Display = F20
Detail Display = 02
Outdoor LED
302 = Flash
303 =
304 =
305 = Flash
306 =
307 = Flash
308 = See Note 1
309 = See Note 1
Measurig Fault Code = RC Air Sensor

F Code Display = F21
Detail Display = 01
Outdoor LED
302 =
303 = Flash
304 =
305 = Flash
306 =
307 = Flash
308 = See Note 1
309 = See Note 1
Measurig Fault Code = ID Pipe Sensor

F Code Display = F25
Detail Display = 01
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *Only for Older Models with LEDS 1-6
308 = See Note 1
309 = See Note 1
Measurig Fault Code = Addressing Incorrect

F Code Display = F26
Detail Display = 01
Outdoor LED
302 =
303 =
304 = Flash
305 =
306 = Flash
307 = Flash
308 = See Note 1
309 = See Note 1
Measurig Fault Code = RC Comms Problem

F Code Display = F27
Detail Display = 01
Outdoor LED
302 =
303 = Flash
304 = Flash
305 =
306 = Flash
307 = Flash
308 = See Note 1
309 = See Note 1
Measurig Fault Code = ID - OD Comms Disconnected ID

F Code Display = F27
Detail Display = 02
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *Only for Older Models with LEDS 1-6
308 = See Note 1
309 = See Note 1
Measurig Fault Code = ID - OD Comms Connection ID

F Code Display = F27
Detail Display = 05
Outdoor LED
302 = Flash
303 = Flash
304 = Flash
305 =
306 = Flash
307 = Flash
308 = See Note 1
309 = See Note 1
Measurig Fault Code = ID - OD Comms Connection ID

F Code Display = F27
Detail Display = 01
Outdoor LED
302 = Flash
303 =
304 = Flash
305 =
306 = Flash
307 =
308 =
309 =
Measurig Fault Code = ID - OD Comms Disconnected OD

F Code Display = F27
Detail Display = 02
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *
308 = *
309 = *Only for Older Models with LEDS 1-6
Measurig Fault Code = ID - OD Comms Connection OD

F Code Display = F27
Detail Display = 05
Outdoor LED
302 =
303 =
304 =
305 =
306 = Flash
307 =
308 =
309 =
Measurig Fault Code = ID - OD Comms Connection OD

F Code Display = F29
Detail Display = 01
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *
308 = *
309 = *Only for Older Models with LEDS 1-6
Measurig Fault Code = ID PCB Setting

F Code Display = F30
Detail Display = 01
Outdoor LED
302 =
303 =
304 =
305 =
306 =
307 = Flash
308 =
309 =
Measurig Fault Code = ID/OD Capacity Incorrect

F Code Display = F30
Detail Display = 02
Outdoor LED
302 =
303 =
304 = Flash
305 =
306 =
307 = Flash
308 =
309 =
Measurig Fault Code = Phase Rotation

F Code Display = F31
Detail Display = 01
Outdoor LED
302 =
303 = Flash
304 =
305 =
306 =
307 =
308 =
309 =
Measurig Fault Code = Low Pressure

F Code Display = F31
Detail Display = 02
Outdoor LED
302 = Flash
303 =
304 =
305 =
306 =
307 =
308 =
309 =
Measurig Fault Code = High Pressure

F Code Display = F31
Detail Display = 06
Outdoor LED
302 =
303 =
304 = Flash
305 = Flash
306 =
307 =
308 =
309 =
Measurig Fault Code = Reversing Valve

F Code Display = F31
Detail Display = 08
Outdoor LED
302 =
303 = Flash
304 =
305 =
306 =
307 = Flash
308 =
309 =
Measurig Fault Code = Indoor Coil Iced

F Code Display = F31
Detail Display = 09
Outdoor LED
302 =
303 = Flash
304 = Flash
305 = Flash
306 =
307 =
308 =
309 =
Measurig Fault Code = Gas Leak

F Code Display = F31
Detail Display = 10
Outdoor LED
302 =
303 = Flash
304 = Flash
305 =
306 = Flash
307 =
308 =
309 =
Measurig Fault Code = Low Gas, Valve Shut or Blockage

F Code Display = F32
Detail Display = 03
Outdoor LED
302 =
303 =
304 = Flash
305 =
306 = Flash
307 =
308 =
309 =
Measurig Fault Code = Inverter Low dc Volts

F Code Display = F32
Detail Display = 04
Outdoor LED
302 = Flash
303 = Flash
304 =
305 =
306 = Flash
307 =
308 =
309 =
Measurig Fault Code = Inverter IPM

F Code Display = F32
Detail Display = 05
Outdoor LED
302 = Flash
303 = Flash
304 =
305 =
306 =
307 =
308 =
309 =
Measurig Fault Code = Compressor Overcurrent

F Code Display = F32
Detail Display = 06
Outdoor LED
302 = Flash
303 = Flash
304 =
305 = Flash
306 =
307 =
308 =
309 =
Measurig Fault Code = Compressor Disch Temp High

F Code Display = F32
Detail Display = 08
Outdoor LED
302 = Flash
303 =
304 = Flash
305 = Flash
306 =
307 =
308 =
309 =Inverter PFC
Measurig Fault Code =

F Code Display = F32
Detail Display = 09
Outdoor LED
302 = Flash
303 =
304 =
305 =
306 = Flash
307 =
308 =
309 =
Measurig Fault Code = Inverter High dc Volts

F Code Display = F32
Detail Display = 10
Outdoor LED
302 = Flash
303 = Flash
304 = Flash
305 =
306 =
307 =
308 =
309 =
Measurig Fault Code = Compressor Rotation Problem

F Code Display = F33
Detail Display = 01
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *
308 = *
309 = *Only for Older Models with LEDS 1-6
Measurig Fault Code = Compressor High Current

F Code Display = F33
Detail Display = 02
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *
308 = *
309 = *Only for Older Models with LEDS 1-6
Measurig Fault Code = High Discharge Temp

F Code Display = F35
Detail Display = 2
Outdoor LED
302 =
303 = Flash
304 =
305 =
306 = Flash
307 =
308 =
309 =
Measurig Fault Code = OD dc Fan Motor Locked

F Code Display = F40
Detail Display = 01
Outdoor LED
302 =
303 =
304 = Flash
305 =
306 =
307 =
308 =
309 =
Measurig Fault Code = OD Outlet Sensor

F Code Display = F40
Detail Display = 11
Outdoor LED
302 =
303 =
304 =
305 = Flash
306 =
307 =
308 =
309 =
Measurig Fault Code = Suction Temp

F Code Display = F40
Detail Display = 21
Outdoor LED
302 = Flash
303 =
304 = Flash
305 =
306 =
307 =
308 =
309 =
Measurig Fault Code = OD Liquid Sensor

F Code Display = F40
Detail Display = 31
Outdoor LED
302 = Flash
303 = Flash
304 = Flash
305 =
306 =
307 =
308 =
309 =
Measurig Fault Code = Defrost Sensor

F Code Display = F40
Detail Display = 51
Outdoor LED
302 =
303 = Flash
304 = Flash
305 =
306 =
307 =
308 =
309 =
Measurig Fault Code = Discharge Sensor

F Code Display = F40
Detail Display = 41
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *
308 = *
309 = *Only for Older Models with LEDS 1-6
Measurig Fault Code = Discharge Sensor

F Code Display = F40
Detail Display = 61
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *
308 = *
309 = *Only for Older Models with LEDS 1-6
Measurig Fault Code = OD Pipe Sensor

F Code Display = F41
Detail Display = 02
Outdoor LED
302 = Flash
303 = Flash
304 =
305 =
306 =
307 = Flash
308 =
309 =
Measurig Fault Code = HP Switch

F Code Display = F41
Detail Display = 03
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *
308 = *
309 = *Only for Older Models with LEDS 1-6
Measurig Fault Code = Heating HP Switch

F Code Display = F41
Detail Display = 11
Outdoor LED
302 = Flash
303 =
304 =
305 =
306 =
307 = Flash
308 =
309 =
Measurig Fault Code = Low Pressure Sensor

F Code Display = F42
Detail Display = 01
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *
308 = *
309 = *Only for Older Models with LEDS 1-6
Measurig Fault Code = Compressor Current Sensor

F Code Display = F42
Detail Display = 11
Outdoor LED
302 =
303 = Flash
304 =
305 = Flash
306 =
307 =
308 =
309 =
Measurig Fault Code = Current Sensor Open

F Code Display = F44
Detail Display = 01
Outdoor LED
302 = Flash
303 =
304 =
305 = Flash
306 =
307 =
308 =
309 =
Measurig Fault Code = Inverter IPM Sensor

F Code Display = F49
Detail Display = 01
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *
308 = *
309 = *Only for Older Models with LEDS 1-6
Measurig Fault Code = OD PCB Setting Faulty

F Code Display = F49
Detail Display = 02
Outdoor LED
302 = *
303 = *
304 = *
305 = *
306 = *
307 = *
308 = *
309 = *Only for Older Models with LEDS 1-6
Measurig Fault Code = OD PCB Setting Faulty

Note 1: LED308 is lit if the master unit is the problem or 309 for the slave
LED 301 is lit when power is supplied to the PCB


A General Guide To Urban Style Products

Pipework
• Pipe sizes and lengths should be as the relevant Technical Guide
• Both lines should be insulated
• No line accessories or oil traps should be fitted
• In cooling mode the suction line should sweat, but not freeze
• In heating mode both pipes should be between 30 and 60C
• Pipework should be refrigeration quality
• Look for restrictions. They could cause compressor failures.
Outdoor Unit
• Discharge Temperature should be between 50 and 70C
• Suction Temperature should be between -3 and 4C
• Check Suction Line is sweating in cooling - problem if not!
• Hot Recip. Compressor = PROBLEM
• Sweating/Frost on expansion line - undercharged
Indoor Unit
• Is it level? Have we adequate drainage?
• Smells are always due to site conditions or drains.
• Flashing lights? = Fault Diagnostics - see over
• When were the filters last cleaned?
• Is the unit too large/small (between 5/20 air circs/hr)
• Is the air short cycling?
Controller
• Is it a wired or wireless handset.
• Is the handset too far away?
• When were the batteries changed last?
• With wired handset, check for interference.
• Is the unit in Emergency Mode?
• Check unit and controller channels compatible
Wiring
• Interconnecting comms wiring is low voltage
• If you have 230V live, check you have a neutral as well
• Check Mains and comms cable not swapped round
• Multi linked systems must be set up as such
• Check voltage drops! Check it isn’t down to Earth!
• Interconnecting cables should be circular crimped


Selecting Emergency Mode is done at the Indoor and Outdoor Unit PCB.
It bypasses the Control Sensors and should not be done for more than 30 minutes.

Indoor PCB - Swicth SS1 to Emergency Setting
Outdoor PCB - Swicth Emergency Swicth 1 to ON
Outdoor PCB - Swicth Emergency Swicth 2 to Cool or

Wire E - 1 - 2 - 3
All Earth - Live - Neutral - Comms

Sensor Resistances – Use to check Thermistor
Air and Pipe sensors apply to indoor AND outdoor units
The discharge sensor is only in the outdoor unit.
If the fault code suggests the sensor is a problem but you
get a sensor reading as to the right then either the connection or PCB is at fault.

Sensor - At 10C - At 20C - At 30C
Air Sensor - 40K 0hms - 25K 0hms - 16K 0hms
Pipe Sensor - 40K 0hms - 25K 0hms - 16K 0hms
Discharge Sensor - 480K 0hms - 293K 0hms - 184K 0hms


Fault codes on Panasonic US systems can be checked using both the wired remote controller and the indoor and outdoor unit LEDs. In case of a malfunction
the wired controller will give a fault code as shown below in conjunction with the accompanying LED codes.
The wireless controller can be used to interrogate a fault, if required, as described below.
1 - Press Inspection/Test button on wireless handset. 0 flashes in Unit Number display on handset.
2 - Press Up/Down button until unit starts to bleep.
3 - 1 continuous beep means No fault. 3 short beeps - follow all steps below. 1 short beep - follow step 4 until you get a continuous beep.
4 - Press the handset MODE button. Press the up/down arrow button until you get 2 short bleeps, or one continuous bleep.
5 - Press the MODE button again. Press the up/down arrow button until you get one continuous bleep.
6 - The fault code is now displayed!

RC Display = Normal
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Normal Operation
Caused By = Normal Running

RC Display = A1
Indoor Unit LEDs
Panel = Flash
H1P/HAP = Various
H2P/HBP = Various
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Indoor PCB Failure
Caused By = PCB Failure or External Spike

RC Display = A3
Indoor Unit LEDs
Panel = Flash
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = High Water Level
Caused By = Float Switch Tripped - Check your drains

RC Display = A6
Indoor Unit LEDs
Panel = Flash
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Fan Motor Failure - ID Unit
Caused By = Fan Motor not running fast enough

RC Display = A7
Indoor Unit LEDs
Panel = Flash
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Louvre Motor Failure
Caused By = Louvre Motor Microswitch

RC Display = AF
Indoor Unit LEDs
Panel = Flash
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Drain System Failure
Caused By = Float Switch Trip while compressor

RC Display = AJ
Indoor Unit LEDs
Panel = Flash
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Faulty Capacity Setting
Caused By = Ring Technical Support

RC Display = C4
Indoor Unit LEDs
Panel = Flash
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Pipe Sensor Failure
Caused By = Thermistor reading incorrect

RC Display = C9
Indoor Unit LEDs
Panel = Flash
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Air Sensor Failure
Caused By = Thermistor reading incorrect

RC Display = CJ
Indoor Unit LEDs
Panel = Flash
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Handset Thermistor failure
Caused By = Thermistor reading incorrect

RC Display = E0
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = On
H2P = Off
Fault Means = Safety Device Trip
Caused By = High Compressor or Fan Temperature

RC Display = Various
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = On
H1P = Various
H2P = Various
Fault Means = Outdoor PCB Failure
Caused By = PCB Failure or External Spike

RC Display = Various
Indoor Unit LEDs
Panel = Off
H1P/HAP =
H2P/HBP =
Outdoor Unit LEDs
HAP = Off
H1P = Off
H2P = Off
Fault Means = Outdoor Power Supply or PCB Failure
Caused By = Check your power supply including neutral

RC Display = E3
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = On
H2P = Off
Fault Means = HP Trip
Caused By = Excess Refrigerant, blockage or contamination

RC Display = E4
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = On
H2P = Off
Fault Means = LP Trip
Caused By = Refrigerant shortage, blockage or contamination

RC Display = E9
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Expansion Valve Failure
Caused By = Expansion valve closed or open circuit

RC Display = F3
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = Off
Fault Means = Discharge Temperature Error
Caused By = Refrigerant shortage or blockage

RC Display = H3
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = On
H2P = On
Fault Means = Failed HP Switch
Caused By = HP trip when compressor off

RC Display = H9
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = On
H2P = On
Fault Means = Failed OD Temperature Sensor
Caused By = Thermistor reading incorrect

RC Display = J3
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = On
H2P = On
Fault Means = Failed Discharge Sensor
Caused By = Thermistor reading incorrect

RC Display = J6
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = On
H2P = On
Fault Means = Failed OD Pipe Sensor
Caused By = Thermistor reading incorrect

RC Display = U0
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Various
H1P = Various
H2P = Various
Fault Means = Gas shortage
Caused By = Refrigerant shortage or blockage

RC Display = U1
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Flash
H1P = Off
H2P = On
Fault Means = Phase protection
Caused By = Swap two phases to operate correctly

RC Display = U4
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Various
H1P = Various
H2P = Various
Fault Means = ID to OD Unit Transmission failure
Caused By = Faulty connection or PCB

RC Display = UF
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Various
H1P = Various
H2P = Various
Fault Means = ID to OD Unit Transmission failure
Caused By = Faulty connection or PCB

RC Display = U5
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Various
H1P = Various
H2P = Various
Fault Means = ID Unit to RC Transmission failure
Caused By = Faulty connection or PCB

RC Display = U8
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Various
H1P = Various
H2P = Various
Fault Means = RC to RC Transmission failure
Caused By = Faulty connection or RC

RC Display = UA
Indoor Unit LEDs
Panel = Off
H1P/HAP = Flash
H2P/HBP = Flash
Outdoor Unit LEDs
HAP = Various
H1P = Various
H2P = Various
Fault Means = Field SettingSwitch
Caused By = Ring Technical Support Failure



Read More ->>

Panasonic Fault Diagnostics – Older Style FS Units R22

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Fault Diagnostics – Older Style FS Units R22
First generation series 11NP Series with E style fault codes
Press check on the Wired Controller to call up the Fault Codes.

Fault Code At Remote = E1
Indoor Unit PCB
LED1 = Flash
LED2 = Flash
LED3 = Flash
Measuring Of Fault Code = Signal from RC to ID Unit faulty

Fault Code At Remote = E2
Indoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
Measuring Of Fault Code = Float Switch

Fault Code At Remote = E3
Indoor Unit PCB
LED1 =
LED2 = Lit
LED3 =
Measuring Of Fault Code = Air Sensor Faulty

Fault Code At Remote = E4
Indoor Unit PCB
LED1 =
LED2 =
LED3 = Lit
Measuring Of Fault Code = Pipe sensor Faulty

Second Generation 21NP Series with F Fault Codes
Press Check on the Wired Controller to call up the Fault Codes

Fault Code At Remote = F2
Indoor Unit PCB
LED1 = Lit
LED2 = Lit
LED3 =
LED4 = Lit
Outdoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
LED4 =
Measuring Of Fault Code = Float switch

Fault Code At Remote = F3
Indoor Unit PCB
LED1 =
LED2 = Lit
LED3 =
LED4 =
Outdoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
LED4 =
Measuring Of Fault Code = Indoor Air Sensor Faulty

Fault Code At Remote = F4
Indoor Unit PCB
LED1 =
LED2 =
LED3 = Lit
LED4 =
Outdoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
LED4 =
Measuring Of Fault Code = Indoor Air Sensor Faulty

Fault Code At Remote = F5
Indoor Unit PCB
LED1 = Lit
LED2 = Lit
LED3 = Lit
LED4 = Lit
Outdoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
LED4 =
Measuring Of Fault Code = Signal from RC to ID faulty

Fault Code At Remote = F5
Indoor Unit PCB
LED1 = Lit
LED2 = Lit
LED3 =
LED4 =
Outdoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
LED4 =
Measuring Of Fault Code = No Signal from ID to RC

Fault Code At Remote = F6
Indoor Unit PCB
LED1 =
LED2 = Lit
LED3 = Lit
LED4 = Lit
Outdoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
LED4 =
Measuring Of Fault Code = Signal from ID to OD faulty

Fault Code At Remote = F6
Indoor Unit PCB
LED1 =
LED2 =
LED3 = Lit
LED4 = Lit
Outdoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
LED4 =
Measuring Of Fault Code = No Signal from Od to ID

Fault Code At Remote = F13
Indoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
LED4 =
Outdoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
LED4 = Lit
Measuring Of Fault Code = OD Unit Overcurrent Protection

Fault Code At Remote = F15
Indoor Unit PCB
LED1 = Lit
LED2 =
LED3 =
LED4 =
Outdoor Unit PCB
LED1 = Lit
LED2 = Lit
LED3 =
LED4 =
Measuring Of Fault Code = HP Switch

Fault Code At Remote = F18
Indoor Unit PCB
LED1 = Lit
LED2 =
LED3 = Lit
LED4 =
Outdoor Unit PCB
LED1 =
LED2 =
LED3 = Lit
LED4 =
Measuring Of Fault Code = Outdoor Pipe Sensor Faulty
Read More ->>

Friday, November 19, 2010

Fujitsu Inverter Error Codes

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To Interrogate
When E:EE is displayed switch unit off and press the temp up and temp down buttons simultaneously for 3 seconds.
To Return to Normal Operation
Press Temp Up and Temp Down Buttons together for 3 seconds.
To Initiate Test Operation
Switch Unit Off & Press Master & Fan Buttons together for 3 seconds.
Press Start/Stop to Initiate.
Changing the Sensor Position
The unit can sense the air temperature at the unit or controller Turn Unit Off To change press THERMOSENSOR button for 5 seconds to unlock
Toggle the THERMOSENSOR button & controller is displayed Set to desired setting (unit or controller)
Press THERMOSENSOR button for 5 seconds to lock

Two Handsets/1 Unit - set on RC DIP SWs
Single handset DIP SW1 is On & 2 is Off
Dual Handset Master Both On & Slave both Off
Group Control up to 16 Unit from 1 RC Handset
Set DIP SW3 on RC to ON
Set Each ID Unit Rotary SW to Unit Address (0-15) in series
Auto Restart on Power Failure
DIP SW2-3 on ID Unit. Off is autorestart (std)/On is manual Restart
Auto Changeover
DIP SW5 on RC. On is autochangeover (std)/Off is Manual
Memory Retention on Power Failure
Dip SW6 on RC. On is Memory/Off is no memory

Wired Remote Control Models
Code Consists of Indoor Unit Address Followed by the Fault Code Below.
No E denotes no fault.
OO ID to RC Comms Fail
O1 ID to OD Comms Fail
O2 ID Air Sensor Open
O3 ID Air Sensor Close
O4 ID Pipe Sensor Open
O5 ID Pipe Sensor Close
O6 OD Pipe Sensor Fail
O8 Power Source Connection Failure
O9 Drain Problem
OA OD Air Sensor Fail
OC Discharge sensor Fail
OE Outdoor High Pressure
11 OD PCB Fail
12 ID Fan Fail
13 OD Signal Abnormal
14 OD EEPROM Fail
15 Compressor Temp Failure
16 Pressure Switch Error
17 IPM Error
18 CT Error
19 Active Filter Module Error
1A Compressor Failure
1B OD Fan Failure
1C Inverter to PCB Comms Fail
1D 2 Way Valve sensor Fail
1E Expansion Valve Error
1F Connection ID Unit Error

Outdoor PCB Fault Codes
Inverter OD Unit PCBs (1 red LED)

OD PCB LED Pulses = 1
Models 9-30 = Comms Failure
Models 36-54 = Comms Failure

OD PCB LED Pulses = 2
Models 9-30 = Disch Sensor Fail
Models 36-54 = Disch Sensor Fail

OD PCB LED Pulses = 3
Models 9-30 = Pipe Sensor Fail
Models 36-54 = Pipe Sensor Fail

OD PCB LED Pulses = 4
Models 9-30 = Air Sensor Fail
Models 36-54 = Air Sensor Fail

OD PCB LED Pulses = 5
Models 9-30 = 2 Way Valve Sensor
Models 36-54 =

OD PCB LED Pulses = 6
Models 9-30 = 3 Way Valve Sensor
Models 36-54 =

OD PCB LED Pulses = 7
Models 9-30 = Compressor Thermistor
Models 36-54 = Compressor Thermistor

OD PCB LED Pulses = 8
Models 9-30 = Pressure Switch
Models 36-54 = Heat Sink Sensor Fail

OD PCB LED Pulses = 9
Models 9-30 = Indoor Comms Error
Models 36-54 = Pressure Switch

OD PCB LED Pulses = 10
Models 9-30 = Current Trip
Models 36-54 =

OD PCB LED Pulses = 11
Models 9-30 = CT Fail
Models 36-54 =

OD PCB LED Pulses = 12
Models 9-30 = Compressor Position Fail
Models 36-54 = IPM Error

OD PCB LED Pulses = 13
Models 9-30 = Compressor Start Fail
Models 36-54 = Compressor Position Fail

OD PCB LED Pulses = 14
Models 9-30 = Timer Failure
Models 36-54 = Compressor Start Fail

OD PCB LED Pulses = 15
Models 9-30 =
Models 36-54 = OD Upper Fan Fail

OD PCB LED Pulses = 16
Models 9-30 =
Models 36-54 = OD Lower Fan Fail

OD PCB LED Pulses = Slow Blink
Models 9-30 =
Models 36-54 = Protect Operation

Non Inverter OD PCBs (2 red LEDs)

LED1 = Blinks
LED2 = Blinks
OD PCB Fail

LED1 = 1 Pulse
LED2 = Lit
Power Source Failure

LED1 = 2 Pulse
LED2 = Lit
OD Disch Temp Sensor

LED1 = 3 Pulse
LED2 = Lit
OD Pipe Sensor

LED1 = 4 Pulse
LED2 = Lit
OD Air Sensor

LED1 = 5 Pulse
LED2 = Lit
Comms Failure

LED1 = 6 Pulse
LED2 = Lit
Indoor Unit Error

LED1 = 7 Pulse
LED2 = Lit
High Discharge Temp

LED1 = 8 Pulse
LED2 = Lit
High Pressure

LED1 = 9 Pulse
LED2 = Lit
Compressor Temp Abnormal

LED1 = 10 Pulse
LED2 = Lit
Compressor Temp Sensor Fail


Inverter Multi AOY30
This has 4 LEDs A,B, C & D to denote which circuit has the fault
Up to 8 flashes - faults are identical to above 9-30 Single System

9 Pressure Switch A
10 Pressure Switch B
11 Indoor Unit Indexing Problem
12 IPM Fail
13 Compressor Position Fail
14 Compressor Fail
15 OD Fan Upper Fail
16 OD Fan Lower Fail
17 PCB Fail

Interconnecting Wiring

CO Multis 2 (Live) 1 (Neutral) 3 (Comms)
HP Multis 1 (Live) 2 (Neutral) 3 (Comms)
AOY90T 3 (Live) 2 (Neutral) 1 (Comms)
ALL OTHERS 1 or L 2 or N 3

We recommend external pumps have their own power supply.
Taking Power for a pump from the unit is a major source of Errors (CLIMATE CENTRE)


Pipework
• Pipe sizes and lengths should be as the relevant Technical Guide
• Both lines should be insulated
• No line accessories or oil traps should be fitted
• In cooling mode both pipes should be between 0 and 10C - the suction line should sweat, but not freeze
• In heating moded both pipes should be between 30 an 60C
• Pipework should be refrigeration quality
• Refrigerant should be R22, unless stated on the outdoor unit
• Look for restrictions. They could cause compressor failures.
Outdoor Unit
• Discharge temperature should be between 50 & 70C
• Suction temperature should be between -3 & 4C
• If fan switches off check for high discharge temperature
• Check Suction Line is sweating – problem if not!
• Hot Recip. Compressor = PROBLEM!
• Sweating/Frost on expansion line – undercharged
Indoor Unit
• Is it level? Have we adequate drainage?
• Smells are always due to site conditions or drains
• Flashing lights? = Fault Diagnostics - see over
• When were the filters last cleaned?
• Is the unit too large/small (between 5/20 air circs / hr)
• Is it on Timer/Test Mode
Controller
• EE:EE on LCD handset - fault diagnostics - see over
• Is the handset too far away?
• When were the batteries changed last?
• Heat Pump models 7-14 – NOT auto changeover
• Timer is one shot, unless it has ‘repeat’ mode
• With wired handset, check for interference. Cable should be screened
• Is it on Timer/Test Mode
Wiring
• In general interconnecting wiring is 240 Volt, but see chart for details
• With LCD wired handset models, Terminal 3 is the Live Not Terminal 1
NEVER apply mains voltage to Terminal 1 on these models
• With LCD wired handset models wiring should be screened
• Check Voltage drops! Check it isn’t down to Earth!
• Has it got a timeclock/BMS interface?
• Interconnecting cables MUST be circular crimped

What the separate Wires do in the interconnecting Cables
Note – Wires are 240V Live except where marked neutral or Earth or signal
Cables marked Signal are digital pulses and you should not attempt to measure these with a meter.


Wired Controllers - Fault diagnostics
A Fault Condition is signalled by EE:EE appearing on the LCD panel.
The unit should be interrogated by switching it off on the handset then
pressing either the down arrows on the SET TIME and TEMP/DAY buttons
together for 3 seconds for 7 day models or the ENERGY SAVE & ZONE
CONTROL buttons for other models.
The Failure code is in 2 parts - Fault and Address.
The Fault Code is an E code. The second is the unit address for multi
linked systems - with single units this is always 00. 7 day models have the
fault code as shown in the table below above the address.
Other models have the codes below, minus the 0, followed by the address
- e.g. E9:00 denoting Float Switch on Unit 0.

Code = E:0
Fault = I/U - R/C Comms
Diagnosis = Check R/C wiring. Interference?

Code = E:01
Fault = I/U - O/U Comms
Diagnosis = Check intercon. wiring. Interference

Code = E:02
Fault = Room Sensor Open
Diagnosis = Sensor Missing

Code = E:03
Fault = Room Sensor Short
Diagnosis = Sensor Faulty

Code = E:04
Fault = I/U Pipe Sensor Open
Diagnosis = Sensor Missing

Code = E:05
Fault = I/U Pipe Sensor Short
Diagnosis = Sensor Faulty

Code = E:06
Fault = O/U Pipe Sensor Open
Diagnosis = Sensor Missing

Code = E:07
Fault = O/U Pipe Sensor Short
Diagnosis = Sensor Faulty

Code = E:08
Fault = Power Source Error
Diagnosis = Incorrect Power Supply

Code = E:09
Fault = Float Switch
Diagnosis = Check Drains - High Water Level

Code = E:0A
Fault = O/U Air Sensor Open
Diagnosis = Sensor Missing

Code = E:0C
Fault = Disch Sensor Open
Diagnosis = Sensor Missing

Code = E:0D
Fault = Disch Sensor Short
Diagnosis = Sensor Faulty

Code = E:0F
Fault = High Disch Temp
Diagnosis = Contamination In Pipework/Gas Shortage

Code = E:11
Fault = Model Abnormal
Diagnosis = Check PCB compatability

Code = E:12
Fault = Indoor Fan Failure
Diagnosis = Check Fan and Motor

Code = E:13
Fault = O/D Signal Abnormal
Diagnosis = Communications?

Code = E:14
Fault = Outdoor PCB Fail
Diagnosis = PCB Failure

Outdoor Unit with
A fault condition is signified by flashing red LED’s on the the outdoor PCB
if it is equipped with one. Except for multisplits and 2 LED models, the
diagnostics are shown in the table on the right.
For 2 LED models flashing signifies sensor failure and constantly lit
indicates high discharge temperature.

Fault = Signal Failure
LED1 =
LED2 =
LED3 =
LED4 = Flash
LED5 =
LED6 =

Fault = Indoor Unit Failure
LED1 =
LED2 =
LED3 =
LED4 = Flash
LED5 =
LED6 =

Fault = Discharge Sensor Fail
LED1 =
LED2 =
LED3 =
LED4 =
LED5 =
LED6 = Flash

Fault = O/D Pipe Sensor Fail
LED1 =
LED2 =
LED3 =
LED4 =
LED5 = Flash
LED6 = Flash

Fault = O/D Air Sensor Fail
LED1 =
LED2 =
LED3 = Flash
LED4 =
LED5 = Flash
LED6 =

Fault = Power Source Error
LED1 =
LED2 = Flash
LED3 =
LED4 =
LED5 =
LED6 =

Fault = PCB
LED1 = Flash
LED2 = Flash
LED3 = Flash
LED4 = Flash
LED5 = Flash
LED6 = Flash

Fault = PCB Failure
LED1 = *
LED2 = *
LED3 = *
LED4 = *
LED5 = *
LED6 = * All Flashing Very Rapidly

Fault = High Pressure Trip
LED1 = Flash
LED2 =
LED3 =
LED4 =
LED5 =
LED6 =

Fault = Discharge Temp Trip
LED1 =
LED2 = Flash
LED3 =
LED4 =
LED5 =
LED6 =




Unit = All
Code Means:- = Power On
Red = On
Green = Off
Yellow = Off

Unit = All
Code Means:- = Timer Mode
Red = On
Green = On
Yellow = Off

Unit = All
Code Means:- = Louvre On
Red = On
Green = On or Off
Yellow = On

Unit = All
Code Means:- = HP Defrost Cont.
Red = Long pulses
Green = Off
Yellow = Off

Unit = All
Code Means:- = Test
Red = Cont. Pulse
Green = Cont. Pulse
Yellow = Off

Unit = D,E,F
Code Means:- = Power Fail
Red = On
Green = Cont Long
Yellow = Pulses Off

Unit = All
Code Means:- = PCB Failure
Red = Cont. Short Pulse
Green = Cont. Short Pulse
Yellow = Off

Unit = G
Code Means:- = Room Sensor Fault
Red = 1 Short Pulse
Green = Rapid Pulse
Yellow = Off

Unit = A,B,G
Code Means:- = Sensor Fault
Red = 2 Short Pulses
Green = Rapid Pulse
Yellow = Off

Unit = D,E,F
Code Means:- = Room Sensor Open/Fail
Red = 2 Short Pulses
Green = Rapid Pulse
Yellow = Off

Unit = E,F
Code Means:- = Room Sensor Short
Red = 2 Short Pulses
Green = Rapid Pulse
Yellow = Rapid Pulse

Unit = C
Code Means:- = Room Sensor Fault
Red = 3 Short Pulses
Green = Long Pulse
Yellow = Off

Unit = D,E,F
Code Means:- = Pipe Sensor Open
Red = 3 Short Pulses
Green = Rapid Pulse
Yellow = Off

Unit = E,F
Code Means:- = Pipe Sensor Short
Red = 3 Short Pulses
Green = Rapid Pulse
Yellow = Rapid Pulse

Unit = D,E,F
Code Means:- = High Water
Red = 4 Short Pulse
Green = Rapid Pulse
Yellow = Off

Unit = F
Code Means:- = Comms Failure
Red = 5 Short Pulses
Green = Rapid Pulse
Yellow = Off

Unit = G
Code Means:- = High Water
Red = 6 Short Pulses
Green = Rapid Pulse
Yellow = Off

Unit = B,E,F
Code Means:- = Fan Failure
Red = 6 Short Pulses
Green = Rapid Pulse
Yellow = Off

Unit = F
Code Means:- = 3ph Reversal
Red = Rapid Pulse
Green = 2 Short Pulses
Yellow = Off

Unit = C
Code Means:- = Pipe Sensor Fault
Red = Long Pulse
Green = 3 Short Pulses
Yellow = Off

Unit = F OD
Code Means:- = Pipe Sensor Open
Red = Rapid Pulse
Green = 3 Short Pulses
Yellow = Off

Unit = F OD
Code Means:- = Pipe Sensor Short
Red = Rapid Pulse
Green = 3 Short Pulses
Yellow = Rapid Pulse

Unit = F OD
Code Means:- = Temp Sensor Open
Red = Rapid Pulse
Green = 4 Short
Yellow = Pulses Off

Unit = F OD
Code Means:- = Temp Sensor Short
Red = Rapid Pulse
Green = 4 Short Pulses
Yellow = Rapid Pulse

Unit = F
Code Means:- = Discharge Sensor Open
Red = Rapid Pulse
Green = 5 Short Pulses
Yellow = Off

Unit = F
Code Means:- = Discharge Sensor Short
Red = Rapid Pulse
Green = 5 Short Pulses
Yellow = Rapid Pulse

Unit = F
Code Means:- = High/Low Pressure
Red = Rapid Pulse
Green = 6 Short Pulses
Yellow = Off

Unit = F
Code Means:- = High Discharge Temp
Red = Rapid Pulse 7
Green = Short Pulses
Yellow = Off

SENSOR RESISTANCES - Use to Check Thermistors across the range

Sensor At 10C At 20C At 30C
Air Temperature Sensors 20K Ohms 13K Ohms 8K Ohms
Indoor Pipe Sensor 103K Ohms 63K Ohms 40K Ohms
Outdoor Pipe Sensor 10K Ohms 6K Ohms 4K Ohms
Discharge Sensor 646K Ohms 395K Ohms 250K Ohms
Read More ->>

Thursday, November 18, 2010

Samsung BAC Error Codes

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Universal Outdoor Unit Inverter Error Codes

Error Code = 101
Explanation and Checking points = Indoor unit communication error - check wiring

Error Code = 102
Explanation and Checking points = Indoor/outdoor unit communication time our error

Error Code = 201
Explanation and Checking points = Indoor unit is not connected

Error Code = 203
Explanation and Checking points = Communication error between outdoor main PCB and Inverter

Error Code = 121
Explanation and Checking points = Indoor temp. sensor (open/short) - check and replaced if required

Error Code = 122
Explanation and Checking points = Indoor unit pipe in sensor (open/short) - check and replaced if required

Error Code = 128
Explanation and Checking points = Indoor unit pipe in sensor separation

Error Code = 221
Explanation and Checking points = Outdoor temp. sensor error (open/short) - check and replaced if required

Error Code = 237
Explanation and Checking points = COND temp. sensor error (open/short) - check and replaced if required

Error Code = 260
Explanation and Checking points = Inverter compressor discharge temp. sensor error (open/short)

Error Code = 153
Explanation and Checking points = Indoor float switch error

Error Code = 460
Explanation and Checking points = Outdoor unit-indoor unit communication error

Error Code = 554
Explanation and Checking points = Outdoor unit refrigerant leakage (gas leak)

Error Code = 458
Explanation and Checking points = Outdoor unit fan error

Error Code = 461
Explanation and Checking points = Inverter compressor start failure

Error Code = 464
Explanation and Checking points = Inverter DC PEAK Error

Error Code = 466
Explanation and Checking points = Inverter DC LINK Voltage 150V below, 410V Over

Error Code = 467
Explanation and Checking points = Inverter compressor rotation error

Error Code = 468
Explanation and Checking points = Inverter current sensor error

Error Code = 469
Explanation and Checking points = Inverter DC LINK sensor error

Error Code = 471
Explanation and Checking points = Inverter EEPROM read/write error

Error Code = 472
Explanation and Checking points = Inverter error

Error Code = 556
Explanation and Checking points = Outdoor unit capacity setup option error

Error Code = 601
Explanation and Checking points = Wired liquid crystal - indoor unit comm. error

Error Code = 602
Explanation and Checking points = Master wired liquid crystal - slave liquid crystal comm. error

Error Code = 603
Explanation and Checking points = Wired liquid crystal COM1/COM2 cross error

Error Code = 604
Explanation and Checking points = Error of setting option for wired remote controller COM2
Read More ->>

Wednesday, November 17, 2010

Samsung RAC and FJM Fault Codes

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Samsung RAC and FJM Fault Codes


Operation =
Flashing Display Timer = Yes
Turbo =
LED Display = E1
Explanation and Checking points = Indoor unit room thermistor error - Open or Closed Circuit - Check and replace if required

Operation = Yes
Flashing Display Timer = Yes
Turbo =
LED Display = E2
Explanation and Checking points = Indoor unit pipe thermistor error - - Open or Closed Circuit - Check and replace if required


Operation =
Flashing Display Timer =
Turbo = Yes
LED Display = E3
Explanation and Checking points = Indoor unit fan motor malfunction - Check and replace if required


Operation =
Flashing Display Timer = Yes
Turbo = Yes
LED Display = E6
Explanation and Checking points = EPROM error - Check and replace PCB if required


Operation = Yes
Flashing Display Timer = Yes
Turbo = Yes
LED Display = Flashing
Explanation and Checking points = Option code error - Check and input new option code if required via wireless remote controller


Operation = Yes
Flashing Display Timer =
Turbo = Yes
LED Display =
Explanation and Checking points = Outdoor unit temperature sensor - Open or Closed Circuit - Check and replace if required

Outdoor Unit

Error Code = Er - E1
Explanation and Checking points = Indoor unit room temperature sensor error (open/short) - Check and replace if required

Error Code = Er - E5
Explanation and Checking points = Indoor unit heat exchanger out temperature sensor error (open/short) - Check and replace if required

Error Code = Er - 05
Explanation and Checking points = Indoor unit heat exchanger in temperature sensor error (open/short) - Check and replace if required

Error Code = Er - 06
Explanation and Checking points = EPROM error - Check and replace PCB if required

Error Code = Er - 09
Explanation and Checking points = Option code error - Check and input new option code if required via wireless remote controller

Error Code = E3 - 01
Explanation and Checking points = Indoor fan motor malfunction Fan and cable - Check and replace if required

Error Code = Er - 01
Explanation and Checking points = Communication error between the indoor unit and outdoor unit

Error Code = Er - 11
Explanation and Checking points = Abnormal increase of operation current

Error Code = Er - 12
Explanation and Checking points = Abnormal increase of OLP temperature

Error Code = Er - 13
Explanation and Checking points = Abnormal increase of discharge temperature

Error Code = Er - 14
Explanation and Checking points = Over current of IPM circuit Comp. Fan

Error Code = Er - 15
Explanation and Checking points = Abnormal increase of heat sink temperature Fan

Error Code = Er - 10
Explanation and Checking points = BLCD compressor starting error Comp. PCB, Comp wire

Error Code = Er - E6
Explanation and Checking points = deice temp-sensor - Check and replace if required

Error Code = Er - 31
Explanation and Checking points = outdoor temp-sensor - Check and replace if required

Error Code = Er - 32
Explanation and Checking points = discharge temp-sensor - Check and replace if required

Error Code = Er - 33
Explanation and Checking points = discharge temp-sensor - Check and replace if required

Error Code = Er - 17
Explanation and Checking points = Communication error between 2 micom on the outdoor PCB

Error Code = Er - 36
Explanation and Checking points = current sensor error PCB - Check and replace if required

Error Code = Er - 37
Explanation and Checking points = heatsink temp-sensor error PCB - Check and replace if required

Error Code = Er - 38
Explanation and Checking points = Voltage sensor error - Check and replace if required


Inverter Unit

Display = E1 01
Explanation and Checking points = Communication error (indoor unit unable to receive data) - Check cables

Display = E1 02
Explanation and Checking points = Communication error (outdoor unit unable to communicate) - Check addresses

Display = E1 21
Explanation and Checking points = Indoor unit room temperature sensor error (Open/Short) - Check and replace if required

Display = E1 22
Explanation and Checking points = Indoor unit sensor error - Evaporator pipe in sensor error (Open/Short) - Check and replace if required

Display = E1 23
Explanation and Checking points = Indoor unit sensor error - Evaporator pipe out sensor error (Open/Short) - Check and replace if required

Display = E1 28
Explanation and Checking points = Indoor unit sensor error - Evaporator pipe out sensor detached

Display = E1 30
Explanation and Checking points = Indoor unit heat exchanger in & out temperature sensor detached

Display = E1 54
Explanation and Checking points = Indoor unit fan malfunction

Display = E1 61
Explanation and Checking points = More than 2 indoor units cool and heat simultaneously

Display = E1 62
Explanation and Checking points = EPROM error

Display = E1 63
Explanation and Checking points = Option code setting error

Display = E1 85
Explanation and Checking points = Cable miss wiring

Display = E2 01
Explanation and Checking points = The number of indoor unit mismatched

Display = E2 02
Explanation and Checking points = Communication error (outdoor unable to receive data)

Display = E2 03
Explanation and Checking points = Communication error between two microcontroller on the outdoor PCB

Display = E2 21
Explanation and Checking points = Outdoor temperature sensor error (Short/Open) - Check and replace if required

Display = E2 37
Explanation and Checking points = Condenser temperature sensor error (Short/Open) - Check and replace if required

Display = E2 46
Explanation and Checking points = Condenser temperature sensor detached

Display = E2 51
Explanation and Checking points = Compressor discharge sensor error (Short/Open) - Check and replace if required

Display = E2 59
Explanation and Checking points = Outdoor unit error

Display = E2 60
Explanation and Checking points = Compressor discharge sensor error (Short/Open) - Check and replace if required

Display = E2 61
Explanation and Checking points = Compressor discharge sensor detached

Display = E3 20
Explanation and Checking points = Compressor OLP sensor error (Short/Open) - Check and replace if required

Display = E4 01
Explanation and Checking points = Indoor unit heat exchanger freezing and compressor stop (cooling mode)

Display = E4 04
Explanation and Checking points = Outdoor unit overload and compressor stop (protection control in heating mode)

Display = E4 16
Explanation and Checking points = Outdoor unit high discharge temperature and compressor stop (heating mode)

Display = E4 19
Explanation and Checking points = Outdoor unit EEV open error (self diagnosis) - Check and replace if required

Display = E4 22
Explanation and Checking points = Outdoor unit EEV close error (self diagnosis) - Check and replace if required

Display = E4 40
Explanation and Checking points = High temperature (over 30°C) of outdoor as heating mode

Display = E4 41
Explanation and Checking points = Low temperature (under -5°C) of indoor as cooling mode

Display = E4 60
Explanation and Checking points = Wrong connection between communication and power cable

Display = E4 61
Explanation and Checking points = Inverter compressor starting failure (5 times)

Display = E4 62
Explanation and Checking points = Compressor trip by input current limit control

Display = E4 63
Explanation and Checking points = Compressor trip by OLP temperature limit control

Display = E4 64
Explanation and Checking points = Compressor peak current protection

Display = E4 65
Explanation and Checking points = Compressor overload protection by current

Display = E4 66
Explanation and Checking points = DC-link voltage error (under 150V or over 410V)

Display = E4 67
Explanation and Checking points = Compressor rotation error

Display = E4 68
Explanation and Checking points = Current sensor error - Check and replace if required

Display = E4 69
Explanation and Checking points = DC-link voltage sensor error - Check and replace if required

Display = E4 70
Explanation and Checking points = Compressor overload protection - Check refrigerant charge and heat exchangers

Display = E4 71
Explanation and Checking points = EPROM error - Check and replace PCB if required

Display = E4 72
Explanation and Checking points = AC line zero-crossing detection circuit error - Check power supply

Display = E5 54
Explanation and Checking points = No refrigerant error (self diagnosis) - Check refrigerant charge
Read More ->>
 

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