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16.5.12 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.
YES
●
Correct abnormal connection
NO
●
Change sensor zone 2
YES
Plug out from sub PCB, check sensor characteristics measure
resistance is it match?
Abnormal zone 2 sensor
Turn off power check connector connection normal?
Change PCB
Troubleshooting:
For safety reason and to prevent component breakdown,
always switch off the power before remove and connect the component.
Caution
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