Read Panasonic WH-SDC09F3E8 / WH-SDC12F9E8 / WH-SDC14F9E8 / WH-SDC16F9E8 / WH-UD09FE8 / WH-UD12FE8 / WH-UD14FE8 / WH-UD16FE8 Service Manual online
122
17.5.5 Service Valve Error (H27)
Malfunction Decision Conditions:
During cooling operation, when:-
[a] Indoor refrigerant pipe temperature at compressor startup - present indoor refrigerant pipe temperature < 2°C
[b] Present high pressure - high pressure at compressor startup < 5kg/cm
[a] Indoor refrigerant pipe temperature at compressor startup - present indoor refrigerant pipe temperature < 2°C
[b] Present high pressure - high pressure at compressor startup < 5kg/cm
2
**Judgment only for first time cooling operation and not during pump down operation.
Malfunction Caused:
1 3 way valves closed.
2 Faulty high pressure sensor.
3 Faulty indoor refrigerant pipe temperature sensor
4 Faulty outdoor unit PCB (main).
2 Faulty high pressure sensor.
3 Faulty indoor refrigerant pipe temperature sensor
4 Faulty outdoor unit PCB (main).
Abnormality Judgment:
Continue for 5 minutes.
Click on the first or last page to see other WH-SDC09F3E8 / WH-SDC12F9E8 / WH-SDC14F9E8 / WH-SDC16F9E8 / WH-UD09FE8 / WH-UD12FE8 / WH-UD14FE8 / WH-UD16FE8 service manuals if exist.