Panasonic WH-SDF07C3E5 Service Manual page 107

Indoor & outdoor unit air-to-water heatpump
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17.5.22. Indoor Water Inlet Temperature Sensor Abnormality (F37)
Malfunction Decision Conditions:
During startup and operation of heating, the temperatures detected by the indoor water inlet temperature sensor are used to
determine sensor error.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty indoor unit PCB.
Abnormality Judgment:
Continue for 5 seconds.
107

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