Electrical Box Temperature Rise - Daikin F-Series Service Manual

SiEN12-710A

4.18 Electrical Box Temperature Rise

L3
Remote Control
Display
Method of
An electrical box temperature rise is detected by checking the radiation fin thermistor with the
Malfunction compressor off.
Detection
Malfunction " With the compressor off, the radiation fin temperature is above 80°C.
Decision " The error is cleared when the temperature drops below 70°C.
Conditions
Supposed
" Fin temperature rise due to defective outdoor unit fan
Causes " Fin temperature rise due to short-circuit
" Fin thermistor defective
" Connector in poor contact
" Outdoor unit PCB defective
Service Diagnosis
Troubleshooting
133