High Pressure Control In Cooling - Daikin B-Series Service Manual

Troubleshooting
4.22

High Pressure Control in Cooling

F6
Remote
Controller
Display
Method of High-pressure control (stop, frequency drop, etc.) is activated in the cooling mode if the
Malfunction temperature being sensed by the heat exchanger thermistor exceeds the limit.
Detection
Malfunction Activated when the temperature being sensed by the heat exchanger thermistor rises above
60°C. (Deactivated when the said temperature drops below 50°C.)
Decision
Conditions
Supposed
Causes
102
The installation space is not large enough.
Faulty outdoor unit fan
Faulty electronic expansion valve
Faulty defrost thermistor
Faulty outdoor unit PCB
Faulty stop valve
Dirty heat exchanger
Si06-313
Service Diagnosis