Error code reference

LG Washer Error Code nF

Water supply error caused by foreign material in water supply valve, disconnected valve terminal, wrongly connected warm/rinse connectors, disconnected PCB terminal from drain hose to detergent drawer, or water temperature sensed above 50°C in Wool/Lingerie courses.

SourceLG Washing Machine - Full Service Manual: WF448/WF428 Seriesp. 20, 25

Diagnostic procedure

The full nF 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 resistance for the water supply valve (4.0 to 5.0 ohms between terminals); check for foreign material in the valve diaphragm.

SourceLG Washing Machine - Full Service Manual: WF448/WF428 Seriesp. 20, 25

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

9 manuals in the MyPros+ library document this code for LG washer.

Models covered by the manuals that document this code

75,000+ service documents · 20,000+ error codes · 100+ brands

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