High Pressure Control In Cooling - Daikin FTXS20G2V1B Service Manual

SiENBE04-808_A

4.15 High Pressure Control in Cooling

F6
Remote Control
Display
Method of High-pressure control (operation halt, frequency drop, etc.) is activated in cooling operation if
Malfunction the temperature sensed by the outdoor heat exchanger thermistor exceeds the limit.
Detection
„ The temperature sensed by the outdoor heat exchanger thermistor rises above
Malfunction
„ The error is cleared when the temperature drops below
Decision
Conditions
RK(X)S20-35G2V1B, ARXS20-35G2V1B
RK(X)S20-35G2V1B9, ARXS20-35G3V1B
RK(X)S42G2V1B, ARXS42G2V1B
RK(X)S50G2V1B, ARXS50G2V1B
„ The installation space is not large enough.
Supposed
„ 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
Service Diagnosis
Troubleshooting
°C.
(°C) (°C)
65 54
65 52
65 53
65 51
°C.
122