Panasonic WH-SDF07C3E5 Service Manual page 94
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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17.5.9. Outdoor High Pressure Protection (H98)
Error code will not display (no OFF/ON Control Panel LED blinking) but store in EEPROM
Malfunction Decision Conditions:
During operation of heating, when pressure 4.0 MPa and above is detected by outdoor high pressure sensor.
Malfunction Caused:
1. Faulty water pump.
2. Insufficient water flow rate in system.
3. Water leak in system.
4. Clogged expansion valve or strainer.
5. Excessive refrigerant.
6. Faulty outdoor high pressure sensor.
7. Faulty outdoor unit PCB.
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