Abnormal Temperature In Electrical Box - Daikin E Series Service Manual

Troubleshooting

2.30 Abnormal Temperature in Electrical Box

L3
Remote
Controller Display
Outdoor Unit LED A5
Display
Method of Temperature rise in the electrical box is identified based on the temperature of the radiation fin
detected by the fin thermistor with the compressor off.
Malfunction
Detection
Malfunction When the temperature of the radiation fin is 122°C or more during the compressor off. (When
the temperature drops below 113°C, fault condition is cleared.)
Decision
Conditions
Supposed
Causes
182
5 -
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
SiBE04-624
Service Diagnosis