Panasonic WH-MXF09D3E8 Service Manual page 75
Mono bloc air-to-water heatpump system
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Also See for WH-MXF09D3E8:
- Service manual (125 pages) ,
- Operating instructions manual (76 pages) ,
- Design handbook (132 pages)
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16.5.6 Outdoor High Pressure Abnormality (H64)
Malfunction Decision Conditions:
During operation of cooling and heating, when the outdoor high pressure sensor output signal is 0Vdc or 5Vdc.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty sensor.
3. Faulty outdoor unit PCB (main).
Abnormality Judgment:
Continue 4 times in 20 minutes.
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