Error code reference

LG Refrigerator Error Code r dH

Refrigerator defrosting error - defrosting sensor does not reach over 40°F (5°C) after 50 minutes of defrosting; caused by temperature fuse disconnection, heater disconnection, drain jam, or poor relay for heater.

SourceLG LFX31995 Refrigerator - Full Service Manualp. 21-22, 31

Diagnostic procedure

The full r dH 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 the door gasket, then check the defrost control part (Fuse-M and Defrost Heater resistance).

SourceLG LFX31995 Refrigerator - Full Service Manualp. 21-22, 31

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock r dH 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

42 manuals in the MyPros+ library document this code for LG refrigerator.

Models covered by the manuals that document this code

More models are covered than are listed here.

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