Self-Diagnosis Function - LG 1 Way Cassette ZTUQ12GULA1 Owner's Manual

AFTER INSTALLATION
34

Self-Diagnosis Function

Outdoor Unit Error
Error code
21
22
23
26
27
29
32
35
38 Refrigerant leakage detect error
40
Inv. D - pipe Th error (Open/
41
43
Outdoor air Th error (Open/
44
45
51
Description
DC peak (IPM fault)
Max. CT (CT2)
DC link low volt
DC comp position error
PSC fault error
Comp over current
D - pipe high (Inv.)
Low pressure error
CT sensor (Open/Short)
Short)
Pressure sensor error
Short)
Cond. middle pipe Th error
(Open/Short)
Capacity over
LED 1 (Red) LED 2 (Green)
2 times 1 time
2 times 2 times
2 times 3 times
2 times 6 times
2 times 7 times
2 times 9 times
3 times 2 times
3 times 5 times
3 times 8 times
4 times
4 times 1 time
4 times 3 times
4 times 4 times
4 times 5 times
5 times 1 time
Indoor status
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Restart after 3
minutes
0 OFF
OFF
OFF
OFF
OFF
OFF