SiBE01-503 Troubleshooting
Service Diagnosis 63
4.6 High Pressure Control in Cooling
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
63°C (RYN models) or 65°C (ARY models).
Deactivated when the temperature drops below 48°C (RYN models) or 50°C (ARY models).
Supposed
Causes
The installation space is not large enough.
Faulty outdoor unit fan
Faulty heat exchanger thermistor
Faulty stop valve
Dirty heat exchanger
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