Si01-406 Troubleshooting
Service Diagnosis 101
4.12 High Pressure Control in Cooling (F6)
Remote
Controller
Display
F6
Method of
Malfunction
Detection
High-pressure control (stop, frequency drop, etc.) is activated in the cooling mode if the
temperature being sensed by the heat exchanger thermistor exceeds the limit.
Malfunction
Decision
Conditions
Activated when the temperature being sensed by the heat exchanger thermistor rises above
60°C. (Deactivated when the said temperature drops below 50°C.)
Supposed
Causes
The installation space is not large enough.
Faulty outdoor unit fan
Faulty defrost thermistor
Faulty outdoor unit PCB
Faulty stop valve
Dirty heat exchanger
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