L3-00 - Outdoor Unit: Electrical Box Temperature Rise Problem - Daikin Sensira RXQ25AMV1B Service Manual

2.5.21 L3-00 – Outdoor unit: Electrical box temperature rise problem
RXQ25+35AMV1B + ARXQ25+35AMV1B + FTXQ25+35AMV1B +
ATXQ25+35AMV1B
Split Sensira R32 BBOP
ESIE21-16 – 2022.02
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check
"3.13 Thermistors" [
Possible cause: Faulty heat exchanger thermistor.
2 Perform a check of the main PCB. See
Possible cause: Faulty main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Switch box temperature is
too high.
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" [ 90].
Possible cause: Faulty outdoor unit fan motor.
3 Check if the power supply is compliant with the regulations. See
4
circuit" [ 118].
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 "5 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.
of the heat
4
108].
"3.8 Main
Effect
Unit will stop operating.
"3.8 Main
2 Troubleshooting
|
exchanger thermistor.
4
PCB" [ 81].
Reset
Manual reset via remote
controller.
4
PCB" [ 81].
"3.9 Outdoor unit fan
"4.1 Electrical
4 129].
Service manual
See
29