Panasonic WH-SXC09D3E5 Service Manual page 97
Air-to-water heatpump
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Also See for WH-SXC09D3E5:
- Operating instructions manual (92 pages) ,
- Design handbook (132 pages) ,
- Operating instructions manual (92 pages)
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16.5.23. Four Way Valve Abnormality (F25)
Malfunction Decision Conditions:
1. During heating operation, when the indoor pipe temperature of thermostat ON indoor unit < 0 C.
2. During cooling operation, when the indoor pipe temperature of thermostat ON indoor unit > 45 C.
Malfunction Caused:
1. Faulty sensor.
2. Faulty connector connection.
3. Faulty outdoor unit PCB (noise filter/main).
4. Faulty four way valve.
Abnormality Judgment:
Continue 4 times in 30 minutes.
97
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