14.2.12. Hot Water Supply 2 Temperature Sensor Abnormality (H89)
Malfunction Decision Conditions:
During startup and operation of heating, the temperatures detected by the hot water supply 2 (sub) temperature sensor are used
to determine sensor error.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty water tank unit PCB.
Abnormality Judgment:
Continue for 5 seconds.
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