Panasonic AQUAREA WH-ADC0912K6E5AN Service Manual page 201

18.5.12 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
201
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