Error code reference

LG Refrigerator Error Code F2 F3 F4 F5

Poor defrosting / defrost heater error; defrost sensor has not exceeded +41°F (5°C) after 1 hour of defrosting.

SourceLG LSXS26336 Refrigerator - Full Service ManualSection 10 - Troubleshooting With Error Display, item 7

Diagnostic procedure

The full F2 F3 F4 F5 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

First diagnostic step

Check door gasket for damage, check fuse-M resistance (0 ohm), defrost heater resistance (48-54 ohm), and defrost sensor resistance (22k+ ohm).

SourceLG LSXS26336 Refrigerator - Full Service ManualSection 10 - Troubleshooting With Error Display, item 7

Unlock with pass

More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

Unlock F2 F3 F4 F5 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

The full F2 F3 F4 F5 procedure

Where this code is documented

Models covered by the manuals that document this code

Related LG refrigerator error codes