High Pressure Control In Cooling - Daikin FTX-N Series Service Manual

Troubleshooting for Outdoor Unit
7.8

High Pressure Control in Cooling

F6
Error Code
Method of Error
High-pressure control (operation halt, frequency drop, etc.) is activated in cooling operation if the
Detection temperature sensed by the outdoor heat exchanger thermistor exceeds the limit.
Error Decision  The temperature sensed by the outdoor heat exchanger thermistor rises above 60 ~ 62°C (140
Conditions
 The error is cleared when the temperature drops below 48.5 ~ 52°C (119.3 ~ 125.6°F)
Supposed
 Installation space not large enough
 Dirty outdoor heat exchanger
Causes
 Defective outdoor fan motor
 Defective stop valve
 Defective electronic expansion valve or coil
 Defective outdoor heat exchanger thermistor
 Defective outdoor unit PCB
165
~ 143.6°F) (depending on the model).
(depending on the model).
SiUS091601EA
Part 6 Service Diagnosis