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Error code reference
LG Dryer Error Code 1 Flash
Air in gas line, flame sensor coated with aluminum oxide, or incorrect gas pressure, or gas shut-off valve closed.
SourceLG Dryers - Service Manual: LEK33A*-4350 & LGK33A*-3058p. 16
Diagnostic procedure
The full 1 Flash 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
Purge air from gas line; wipe sensor clean or replace sensor if necessary; check for correct gas pressure; open gas shut-off valve.
SourceLG Dryers - Service Manual: LEK33A*-4350 & LGK33A*-3058p. 16
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 dryer.
Models covered by the manuals that document this code
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