39
No Error code Content
19 P5
System B Current protection (protection occurs for 5 times in 120 minutes and the failure can be
recovered by power disconnection only)
20
1P6 System A inverter module protection
2P6 System A inverter module protection
21 P7 Condenser high temperature protection
22 P9
Protection of outlet and inlet water temperature difference(protection occurs for 3 times in 60 minutes
and the failure can be recovered by power disconnection only)
23 PA Inlet water high temperature in cooling mode
24 Pb System anti-freezing protection
25 PC Evaporator pressure low in cooling mode
26 PE Low-temperature protection of evaporator (manual recovery)
27 PH T4 high temperature protection in heating mode
28 PL
Tfin module high temperature protection(Protection occurs for 3 times in 100 minutes and the failure
can be recovered by power disconnection only)
29
1PU DC fan A module protection
2PU DC fan B module protection
30
1H0 System A IPM module Communication error
2H0 System B IPM module Communication error
31 H1 Under/Over voltage protection
32
1H4 Three times 1PP protection within one hour (power off recovery)
2H4 Three times 2PP protection within one hour (power off recovery)
33
1H6 System A DC bus voltage error
2H6 System B DC bus voltage error
34 Fb Pressure sensor error
35 Fd Air suction temperature protection error
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