Panasonic WH-SXC09D3E5 Service Manual page 96
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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16.5.22. Refrigeration Cycle Abnormality (F24)
Malfunction Decision Conditions:
1. During operation of cooling and heating, compressor frequency > Frated.
2. During operation of cooling and heating, running current: 0.65A < I < 1.65A.
3. During operation of cooling, water inlet temperature - indoor refrigerant liquid temperature < 5 C.
4. During operation of heating, indoor refrigerant liquid temperature - water inlet temperature < 5 C.
Malfunction Caused:
1. Faulty water inlet or indoor refrigerant liquid temperature sensors.
2. 2/3 way valve closed.
3. Refrigerant shortage (refrigerant leakage).
4. Clogged expansion valve or strainer.
5. Faulty outdoor unit PCB (main).
6. Poor compression of compressor.
Abnormality Judgment:
Continue 2 times in 20 minutes.
96
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