Daikin FDMQ-R Series Service Manual

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

Daikin FDMQ-R Series Specifications

General

Brand	Daikin
Model	FDMQ-R Series
Category	Air Conditioner
Language	English