LG LDC24370ST Service Manual page 47

B5. LED blinks seven times, then repeats
Blink Blink Blink Blink Blink Blink Blink OFF
- Purpose: Prevent high current due to IPM Short
- Cause: Damaged IPM (Dead Short)
- Test for a dead short at Point A with a VOM.
- Logic: Compressor is forced off and tries to restart in 20 seconds.
Protection
Blink 7 times
logic
(Lock Piston Trip) Check B5
Check B
Compressor
Doesn't work
Y
Check IPM
visual inspection
(turn off)
Modify
N
Power
Reset
Short
N
Test
Point A
Y
Compressor Y Check Procedure
Damage
Check C3
NG
47
Protection Logic
A
Replace
Drive PCB
Repeat
Replace
Compressor