LG GA-B499YVQZ User Manual Page 16

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16
COMPRESSOR
4) LED blinks two times, then repeats (Stroke Trip)
Purpose: Prevent abnormally long piston strokes.
Case 1. If compressor doesn’t work and LED blinks
- Cause: Possibly harness from compressor to PCB might be defective.
Case 2. If compressor works intermittently and LED blinks
- Cause: Condenser Fan or Freezer Fan is not running. Sealed system problem such as moisture restriction, restriction at
capillary tube or refrigerant leak.
Logic: Compressor is forced to o� and then tries to restart after 1 minute.
Blink Blink OffBlink Blink Off
Protection
logic
Check B
Blink 2 times
(Stroke Trip)
Check B2
Compressor
Doesn ’ t work
Harness
Connecting
Check C
Cycle
Check E
Fix
Cycle
Replace
Driver PCB
Y
Y
N
Repeat
Check Procedure
Stroke Trip
Occur?
Reset
Power
Compressor
Damage
Check C
Replace
Compressor
Fix Harness
Y
N
N
N
Y
NG
OK
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