Skip to main content
Error code reference
LG Refrigerator Error Code LED 1 blink
AD Offset Error (FCT0 Error) - motor voltage and current sensor error detected on compressor board.
SourceLG LTNC11131V Refrigerator - Service Manual: R600a Repairp. 16-17
Diagnostic procedure
The full LED 1 blink procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check normal operation after power reset. If same error recurs, replace the main board (PCB).
SourceLG LTNC11131V Refrigerator - Service Manual: R600a Repairp. 16-17
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock LED 1 blink procedure $9.95
Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.
Where this code is documented
1 manual in the MyPros+ library documents this code for LG refrigerator.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax