LG LTCS20020 Series Service Manual page 16
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Also See for LTCS20020 Series:
- Owner's manual (101 pages) ,
- Owner's manual (34 pages) ,
- Owner's manual (100 pages)
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Actions for each TRIP and the number of LED blinking
3. LED blinking 7 times (IPM Fault)
B
n i l
k
Blink Blink Blink Blink Blink Blink
Cause: IPM Short, defect(burned or damaged)
Objective: Protection of the over-current caused by IPM short or defect.
Actions: Visual verification of IPM burn when COMP is not in operation. Check whether
there is a short circuit in U, V, or W part.
Replace PCB
P/N: EBR807574**
Check
Check IPM Fault or
protection
LED blinking 7
times(IPM Fault)
logic
Compressor is not
verification of
activated
Power
Reset
O
F
F
GND
Visual
Check Point A short
circuit IPM output
IPM burn
Re-confirm
inspection
procedure
16
Copyright © 20
Only training and service purposes.
U
GND
Replace PCB
>80V-20%
LG Electronics Inc.All right s reserved.
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Troubleshooting
