SiBE12-908 Troubleshooting
Service Diagnosis 150
2.29 Temperature Rise in Radiation Fin
Remote
Controller Display
L4
Method of
Malfunction
Detection
Temperature rise in the radiation fin is identified based on the temperature of the radiation fin
detected by the fin thermistor with the compressor on.
Malfunction
Decision
Conditions
The compressor stops when the radiation fin temperature is 86 °C or more. (Fault condition
is cleared when the radiation fin temperature is below 72 °C.)
Shut down when the error occurs repeatedly
Clear condition : Continuous operation for 60 minutes
Supposed
Causes
Fin temperature rise due to defective outdoor fan
Fin temperature rise due to short circuit
Detection error due to defective fin thermistor
Detection error due to improper connection of connector
Detection error due to defective outdoor unit PCB
Silicon grease is not applied properly on the heat radiation fin after replacing outdoor unit
PCB
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