Electrical Box Temperature Rise - Daikin SiBE04-624_B_FTXR-E Service Manual

Troubleshooting

2.35 Electrical Box Temperature Rise

L3
Error Code
Method of Error An electrical box temperature rise is detected by checking the radiation fin thermistor with the
compressor off.
Detection
Error Decision
Conditions
Supposed
Causes
124
With the compressor off, the radiation fin temperature is above A°C.
The error is cleared when the radiation fin temperature drops below B°C.
To cool the electrical components, the outdoor fan starts when the radiation fin temperature
rises above C°C and stops when it drops below B°C.
A (°C) B (°C) C (°C)
122 113
Defective outdoor fan motor
Short circuit
Defective radiation fin thermistor
Disconnection of connector
Defective outdoor unit PCB
120
SiBE04-624_B
Service Diagnosis