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Troubleshooting
Service manual
32
(A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D +
(A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C +
(A)RXF20~42D + (A)RXF20~42E
Split Sensira R32
ESIE18-12G – 2023.01
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the main PCB. See
Possible cause:
Faulty main 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 compliant with the regulations. See
153].
Possible cause:
▪
Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪
Power drop,
▪
Short circuit.
4
Clean the outdoor heat exchanger. See
Possible cause:
Dirty outdoor heat exchanger.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.5.24 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 compliant with the regulations. See
153].
Possible cause:
▪
Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪
Power drop,
▪
Short circuit.
3
Perform a check of the main PCB. See
Possible cause:
Faulty main PCB.