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Error code
System B Current protection (protection occurs for 5 times in 120 minutes and the failure can be
19
P5
recovered by power disconnection only)
1P6
System A inverter module protection
20
2P6
System A inverter module protection
21
P7
Condenser high temperature protection
Protection of outlet and inlet water temperature difference(protection occurs for 3 times in 60 minutes
22
P9
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
Tfin module high temperature protection(Protection occurs for 3 times in 100 minutes and the failure
28
PL
can be recovered by power disconnection only)
1PU
DC fan A module protection
29
2PU
DC fan B module protection
1H0
System A IPM module Communication error
30
2H0
System B IPM module Communication error
31
H1
Under/Over voltage protection
1H4
Three times 1PP protection within one hour (power off recovery)
32
2H4
Three times 2PP protection within one hour (power off recovery)
1H6
System A DC bus voltage error
33
2H6
System B DC bus voltage error
34
Fb
Pressure sensor error
35
Fd
Air suction temperature protection error
Content
39
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