F07 Intermediate temperature (C2) in heat exchanger trouble
1.
Error Detection Method
It is judged an error when open circuit or short circuit.
2.
Error Diagnosis
1 Sensor
1-1
1-2
2 PC board
2-1
5
Sensor connector is connected to PC board properly.
Resistance between sockets is infinity or 0 ohm.
Replace PC board because of outdoor control PC board failure.
5-28
Yes
1-2
No
Reconnect and check
Yes
Replace sensor
No
2-1