L4-00 - Outdoor Unit: Malfunction Of Inverter Radiating Fin Temperature Rise - Daikin FTXA20A Service Manual

1.5.27 L4-00 – Outdoor unit: Malfunction of inverter radiating fin temperature rise
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
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
4
motor" [ 111].
Possible cause: Faulty outdoor unit fan motor.
3 Check if the power supply is conform with the regulations. See
4
circuit" [ 156].
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance >4%),
▪ Power drop,
▪ Short circuit.
4 Clean the outdoor heat exchanger. See "4 Maintenance" [
Possible cause: Dirty outdoor heat exchanger.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Radiating fin thermistor
measures a too high
temperature.
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
4
motor" [ 111].
Possible cause: Faulty outdoor unit fan motor.
2 Check if the power supply is conform with the regulations. See
4
circuit" [ 156].
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance >4%),
▪ Power drop,
▪ Short circuit.
3 Perform a check of the main PCB. See
Possible cause: Faulty main PCB.
Prerequisite: Stop the unit operation via the user interface.
4 Turn OFF the respective circuit breaker.
"2.12 Main
Effect
Unit will stop operating.
"2.12 Main
1 Troubleshooting
|
4
PCB" [ 91].
"2.13 Outdoor unit fan
"3.1 Electrical
4
167].
Reset
Manual reset via user
interface.
"2.13 Outdoor unit fan
"3.1 Electrical
4
PCB" [ 91].
Service manual
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