Panasonic WH-ADF0309J3E5CM Service Manual page 256

25.2.10 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
256
For safety reason and to prevent
component breakdown, always switch
Caution
off the power before remove and
connect the component.
● Correct abnormal connection
NO
● Change sensor zone 2