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14.2.11. Hot Water Supply Temperature Abnormality (H87)
Malfunction Decision Conditions:
1. During operation (with hot water supply ON), when hot water supply 1 temperature is above 60qC and flow adjustment valve
is fully close.
2. During operation (with hot water supply ON), when hot water supply 1 temperature is above hot water setting temperature
+10qC.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty water tank unit PCB.
Abnormality Judgment:
Continue for 30 seconds for conditions (1) and (2).
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