Electrical Box Temperature Rise - Daikin FTKS25BVMB Service Manual

SiBE04-302
4.15

Electrical Box Temperature Rise

L3
Remote
Controller
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 122°C. (Reset is made when the
temperature drops below 113°C.)
Decision
Conditions
Supposed
Causes
Service Diagnosis
Fin temperature rise due to defective outdoor unit fan
Fin temperature rise due to short-circuit
Fin thermistor defective
Connector in poor contact
Outdoor unit PCB defective
Troubleshooting
109