SiENBE04-808_A
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
RK(X)S20-35G2V1B, ARXS20-35G2V1B
RK(X)S20-35G2V1B9, ARXS20-35G3V1B
RK(X)S42G2V1B, ARXS42G2V1B
RK(X)S50G2V1B, ARXS50G2V1B
Defective outdoor fan motor
Supposed
Short circuit
Causes
Defective radiation fin thermistor
Disconnection of connector
Defective outdoor unit PCB
Service Diagnosis
rises above
°C and stops when it drops below
Troubleshooting
°C.
°C.
°C.
(°C)
(°C)
(°C)
80
70
80
98
75
83
80
70
75
95
80
85
134