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Troubleshooting
Service manual
23
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
Split Comfora R32
ESIE18-01C – 2020.07
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the inverter PCB. See
73].
Possible cause:
Faulty inverter PCB.
2
Perform a check of the outdoor unit fan motor. See
Possible cause:
Faulty outdoor unit fan motor.
3
Check if the power supply is conform with the regulations. See
Possible cause:
▪
Faulty or disturbance of the power supply (imbalance >10%),
▪
Power drop,
▪
Short circuit.
4
Clean the outdoor heat exchanger. See
132].
Possible cause:
Dirty outdoor heat exchanger.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
1.5.24 L4-00 – Outdoor unit: Malfunction of inverter radiating fin temperature rise
Trigger
Effect
Reset
Radiating fin thermistor
measures a too high
temperature.
Unit will stop operating.
Manual reset via user
interface.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the outdoor unit fan motor. See
Possible cause:
Faulty outdoor unit fan motor.
2
Check if the power supply is conform with the regulations. See
Possible cause:
▪
Faulty or disturbance of the power supply (imbalance >10%),
▪
Power drop,
▪
Short circuit.
3
Perform a check of the inverter PCB. See
73].
Possible cause:
Faulty inverter PCB.
4
Perform a check of the main PCB. See
75].
Possible cause:
Faulty main PCB.