Part 4 Trouble Shooting
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Copyright ©2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Code
Contents
Operation
State
Error Display
Cable Remote
Controller
Outdoor Device
Red LED Green LED
21
IGBTM Fault Error Stop CH21
Flashing
2 times
Flashing
1 time
22
CT 2 Error
(Input of Over-Current)
Stop CH22
Flashing
2 times
Flashing
2 times
23
DC Link Error
(High/Low DC Voltage)
Stop CH23
Flashing
2 times
Flashing
3 times
25
Outdoor Unit Input Voltage High/Low
Voltage
Stop CH25
Flashing
2 times
Flashing
5 times
26
DC Comp Position Detection Error Stop CH26
Flashing
2 times
Flashing
6 times
27
PSC/PFC Over-Current Error (HW) Stop CH27
Flashing
2 times
Flashing
7 times
29
Comp Phase Over-Current Error Stop CH29
Flashing
2 times
Flashing
9 times
32
D-Pipe Overheating Error
(INV Comp)
Stop CH32
Flashing
3 times
Flashing
2 times
40
Outdoor Unit Inverter Compressor CT
Sensor Fault
Stop CH40
Flashing
4 times
-
41
D-Pipe Sensor Error (INV Comp) Stop CH41
Flashing
4 times
Flashing
1 time
43
High pressure Sensor Error Stop CH43
Flashing
4 times
Flashing
3 time
44
Outdoor Inlet Sensor Error Stop CH44
Flashing
4 times
Flashing
4 times
❈ Error checking : The errors may be checked on LED of the display parts of wired remote
controller and the LED of the controller of outdoor device.
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