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Error code reference
LG Refrigerator Error Code RT sensor error
Failure of RT (Room Temperature) sensor due to cut or short circuit wire.
SourceLG Refrigerator - Service Manual: GR-B459/GR-F459/GR-Q459 Seriesp. 27-28
Diagnostic procedure
The full RT sensor error 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
Press and hold SUPER FRZ button and FRZ Temp button for 1 second or longer to display RT sensor error code; inspect connecting wires on the RT sensor.
SourceLG Refrigerator - Service Manual: GR-B459/GR-F459/GR-Q459 Seriesp. 27-28
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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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
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