39
No. Error Code Explanation
18
P0
1P0
2P0
System high-presssure protection or discharge temperature
protection
Compressor module 1 high pressure protection
Compressor module 2 high pressure protection
19 P1 System low pressure protection
20 P2 Tz total cold outlet temperature too high
21 P3 T4 ambient temperature is too high
22
1P4
2P4
System A current protection
System A DC bus current protection
23
1P5
2P5
System B current protection
System B DC bus current protection
24 P6 Module error
25 P7
High temperature protection of system condenser for 3 times in
60 minutes(power failure recovery)
26 P9 Water inlet and outlet temperature difference protection
27 PA
Abnormal water inlet and outlet temperature difference
protection
28 Pb Winter antifreeze protection
29 PC Cooling evaporator pressure too low
30 PE Cooling evaporator low temperature antifreeze protection
31 PH Heating T4 too high temperature protection
32 PL
Tfin module too high temperature protection [for 3 times in 60
minutes(power failure recovery)]
33
1PU
2PU
DC fan A module protection
DC fan B module protection
34 H5 Voltage too high or low
35 xH9 Drive model not matched (x=1or2)
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