Electrical Box Temperature Rise - Daikin E-Series Service Manual

SiENBE12-620

5.22 Electrical Box Temperature Rise

L3
remote control
Display
Outdoor Unit LED
A
Display
Method of
An electrical box temperature rise is detected by checking the radiation fin thermistor with the
Malfunction
compressor off.
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Service Diagnosis
1 2 3 4
5 4 4 1
With the compressor off, the radiation fin temperature is above 100°C.
The error is cleared when the temperature drops below 85°C.
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
L3
4
Troubleshooting
241