LG LRMVC2306 Series Service Manual

7. IPM Fault Trip and LED Blinking 7 times (IPM Fault)
Blink BlinkBlink Blink Blink Blink Blink OFF
→ Purpose : Protection Over-Current by failure IPM(IPM short)
→ Cause : IPM Short and failure
→ Logic : After the Comp. Off every 20 seconds restart Comp.
LED7
Blinks
Replace PCB
LED7
Blinks
About 5min
Reset
Te st
Mode
1 Input
LED8
Blinks
Replace PCB
Reset
LED8
Blinks
About 5min
Te st
Mode
1 Input
Mult i
Tester
8. Comp Tx Error Trip and LED Blinking 8 times (Communication Error)
C heck the PCB Output
→ Check output voltage from PCB to Compressor.
BlinkBlink Blink Blink Blink Blink OFF
→ Purpose : Detection communication error with the Micom of the refrigerator control.
→ Cause : Communication Error
→ Logic : Only LED blinking without the Comp. Off
(Comp. is operate command before communication error)
A-Inverter
→ To judge whether there is any issue with the PCB operation, check the PCB output voltage.
Normal: Voltage 80[V] or higher output at ((COMMON,POWER)
Blink
IPM Output check
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LG Electronics Inc. All rights
reserved. Only training and service purposes.

LG LRMVC2306 Series Specifications

General

Brand	LG
Model	LRMVC2306 Series
Category	Refrigerator
Language	English