Specifications

SiBE04-624 Troubleshooting
Service Diagnosis 173
2.24 High Pressure Control in Cooling
Remote
Controller Display
F6
Outdoor Unit LED
Display
A5 55 ( - )
Method of
Malfunction
Detection
During cooling, high pressure control (stop, frequency attenuation, etc.) is executed according
to the temperature detected by the heat exchanger thermistor.
Malfunction
Decision
Conditions
During cooling, when the temperature detected by the heat exchanger thermistor is 63°C or
more. (Fault condition is cleared when the temperature is below 52°C.)
Supposed
Causes

Insufficient installation space

Defective outdoor fan

Defective electronic expansion valve

Defective heat exchanger thermistor

Defective outdoor unit PCB

Defective stop valve

Defective solenoid valve for dehumidification