Panasonic WH-SDF07C3E5 Service Manual page 90
Indoor & outdoor unit air-to-water heatpump
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Also See for WH-SDF07C3E5:
- Operating instructions manual (76 pages) ,
- Service manual (158 pages) ,
- Design handbook (132 pages)
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17.5.5. Outdoor High Pressure Abnormality (H64)
Malfunction Decision Conditions:
During operation of 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.
Abnormality Judgment:
Continue for 5 seconds (but no judgment for 5 minutes after compressor startup/restart).
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