Panasonic CS-RE18NKE Service Manual page 70

15.5.20 F97 (Compressor Overheating)
Malfunction Decision Conditions
During operation of cooling and heating, when compressor tank temperature data (112°C) is detected by the
compressor tank temperature sensor.
Malfunction Caused
Refrigerant shortage (refrigerant leakage).
2/3 way valve closed.
Detection error due to faulty compressor tank temperature sensor.
Troubleshooting
70