Skip to main content
Error code reference
LG Refrigerator Error Code R0 ON, R1-R4 OFF
Defrost sensor failure: defrost sensor wires are shorted or open.
SourceLG Refrigerator - Full Service Manual: GM-R50/R60TYVPp. 24-25
Diagnostic procedure
The full R0 ON, R1-R4 OFF 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 defrost sensor resistance and wiring for short or open circuit.
SourceLG Refrigerator - Full Service Manual: GM-R50/R60TYVPp. 24-25
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock R0 ON, R1-R4 OFF 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