Panasonic WH-MXF09D3E5 Service Manual page 73

Monobloc air-to-water heatpump system

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16.5.5. Water Flow Switch Abnormality (H62)

Malfunction Decision Conditions:

During operation of cooling and heating, the water flow detected by the indoor water flow switch is used to determine water flow

error.

Malfunction Caused:

1. Faulty water pump.

2. Water leak in system.

3. Faulty connector connection.

4. Faulty water flow switch.

5. Faulty indoor unit PCB (main).

Abnormality Judgment:

Continue for 10 seconds (but no judgment for 9 minutes after compressor startup/restart).

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