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17.5.13 Outdoor High Pressure Protection (H98)
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
2/3 way closed.
5
Clogged expansion valve or strainer.
6
Excessive refrigerant.
7
Faulty outdoor high pressure sensor.
8
Faulty outdoor unit PCB (main).
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