High Pressure Control In Cooling - Daikin FTXS09HVJU Service Manual

Troubleshooting

4.13 High Pressure Control in Cooling

F6
Remote
Controller
Display
High-pressure control (stop, frequency drop, etc.) is activated in the cooling mode if the
Method of
temperature being sensed by the heat exchanger thermistor exceeds the limit.
Malfunction
Detection
Malfunction Activated when the temperature being sensed by the heat exchanger thermistor rises above
(The error is cleared when the temperature drops below
Decision
Conditions
15/18/24 class
 The installation space is not large enough.
Supposed
 Faulty outdoor unit fan
Causes
 Faulty electronic expansion valve
 Faulty defrost thermistor
 Faulty outdoor unit PCB
 Faulty stop valve
 Dirty heat exchanger
Service Diagnosis
09/12 class 149
140
°F.)
129
122
SiUS04-904
°F.
121