High Pressure Control In Cooling - Daikin 4MXL-T Series Service Manual

SiUS121827E

7.13 High Pressure Control in Cooling

F6
Error Code
Outdoor Unit LED A j 1 i 2 h 3 i 4 i 5 h
Display
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 about 62.5°C
Conditions
 The error is cleared when the temperature drops below about 49.5°C (121.1°F).
Supposed
 The installation space not large enough
Causes  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
Part 6 Service Diagnosis
(144.5°F).
Troubleshooting for Outdoor Unit
217