High Pressure Control In Cooling - Daikin FTXM-V Series Service Manual

SiUS042113E

4.19 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 A.
Conditions  The error is cleared when the temperature drops below B.
09/12 class
18/24 class
Supposed
 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
A
(°C) (°F) (°C)
62 144 54
61 142 52
B
(°F)
129
126
Troubleshooting
117