Electrical Box Temperature Rise - Daikin FTXL20G2V1B Service Manual

Troubleshooting

4.21 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
„ With the compressor off, the radiation fin temperature is above
Malfunction
„ The error is cleared when the radiation fin temperature drops below
Decision
„ To cool the electrical components, the outdoor fan starts when the radiation fin temperature
Conditions
RXL20G2V1B
RXL20G2V1B9
RXL25G2V1B
RXL35G2V1B
„ Defective outdoor fan motor
Supposed
„ Short circuit
Causes
„ Defective radiation fin thermistor
„ Disconnection of connector
„ Defective outdoor unit PCB
106
rises above °C and stops when it drops below
(°C)
80
98
80
95
°C.
(°C) (°C)
70 80
75 83
70 75
80 85
SiENBE04-925_A
°C.
°C.
Service Diagnosis