13
Error Codes
1
Indoor EEPROM (Electrically Erasable Programmable
Read-Only Memory) error
1 Off
E0
2
Indoor and outdoor unit communication malfunction
2 Off
E 1
3
Indoor fan speed malfunction
4 Off
E3
4
Indoor room temperature sensor error
5 Off
E4
5
Evaporator coil temperature sensor error
6 Off
E5
6
Refrigerant leak detection system malfunction
7 Off
EC
7
Water level alarm malfunction
8 Off
EE
8
Dual indoor unit (twin model only) communication
malfunction
9 Off
E8
9
Other twin model malfunction
10 Off
E9
10
Overload protection
1 On
F0
11
Outdoor temperature sensor error
2 On
F 1
12
Outdoor condenser pipe sensor error
3 On
F2
13
Discharge air temperature sensor error
4 On
F3
14
Outdoor EEPROM (Electrically Erasable
Programmable Read-Only Memory) error
5 On
F4
15
Outdoor fan speed (DC fan motor only) malfunction
6 On
F5
16
17
18
19
20
Inverter module IPM protection
1 Flash
P0
21
High/Low voltage protection
2 Flash
P 1
22
Compressor top overheating protection
3 Flash
P2
23
Outdoor low temperature protection
4 Flash
P3
24
Compressor drive error
5 Flash
P4
Mode conflict
6 Flash
P5
Compressor low-pressure protection
7 Flash
P6
Indoor unit communication malfunction
11 On
fa
Outdoor IGBT sensor error
8 Flash
P7
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