Electrical Box Temperature Rise - Daikin CTXS09GVJU Service Manual

SiUS12-814

5.22 Electrical Box Temperature Rise

L3
Remote
Controller
Display
Outdoor Unit LED A 5
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 176°F (18 class) or 212°F (32 class).
Decision Reset is made when the temperature drops below 158°F.
Conditions
Supposed
Causes
Service Diagnosis
1 4 2 4 3 1 4 4
Fin temperature rise due to defective outdoor unit fan
Fin temperature rise due to shortcircuit
Fin thermistor defective
Connector in poor contact
Outdoor unit PCB defective
Troubleshooting
145