Panasonic WH-MXC09J3E8 Service Manual page 161

17.5.12 Abnormal Zone 2 Sensor (H44)
Malfunction Caused:
1 Faulty connector connection.
2 Faulty buffer tank sensor.
3 Faulty indoor sub PCB.
Abnormality Judgment:
Continue for 5 seconds.
Abnormal zone 2 sensor
Turn off power check connector connection normal?
Plug out from sub PCB, check sensor characteristics measure
resistance is it match?
Change PCB
YES
YES
Caution
● Correct abnormal connection
NO
● Change sensor zone 2
161
For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.