Panasonic WH-MXC16G9E8 Service Manual page 117
Air-to-water heatpump system
mono bloc unit
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Also See for WH-MXC16G9E8:
- Operating instructions manual (100 pages) ,
- Service manual (18 pages)
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16.5.25 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.
117
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