Panasonic CS-PS9NKH Service Manual page 76

14.4.13 F11 (Indoor Pipe Temperature Sensor Abnormality)
Malfunction Decision Conditions
When cooling operation, when indoor pipe temperature or indoor heat exchanger temperature sensor is above
45°C.
Malfunction Caused
Faulty connector connection.
Faulty indoor pipe temperature sensor.
Faulty indoor main PCB.
Troubleshooting
76