Panasonic WH-SDF07C3E5 Service Manual page 113
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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17.5.28. Outdoor Current Transformer Open Circuit (F46)
Malfunction Decision Conditions:
A current transformer (CT) open circuit is detected by checking the compressor running frequency ( rated frequency) and CT
detected input current (< 0.65A) for continuously 20 seconds.
Malfunction Caused:
1. CT defective.
2. Faulty outdoor unit PCB.
3. Compressor defective (low compression).
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