LG Dryer Error Codes: What They Mean
Updated 2026-08-08
If your LG dryer is showing an error code, the exact code will vary by model — but on most modern dryers, fault codes fall into a handful of general categories: the door or lid switch, airflow and venting, the heating system, the motor and drive, and the electronic controls. Here's how to read what your LG is telling you, what typically causes it, and when it's worth calling a technician.
Door / lid switch
The door switch isn't confirming the door is closed, so the dryer won't start or stops mid-cycle.
Common causes:
- A worn or misaligned door strike
- A failed door switch
- Lint buildup preventing the door from sitting flush
Check that the door closes firmly and clean any lint from around the door seal. If the door closes normally but the fault persists, the switch itself has likely failed.
Airflow / venting
The dryer is detecting restricted airflow, usually from a blocked lint filter or vent line.
Common causes:
- A full or partially clogged lint filter
- A blocked or crushed exhaust vent
- Lint buildup inside the duct running to the outside
Clean the lint filter before every load and check that the exhaust vent outside the home isn't blocked or crushed. If airflow is still restricted after cleaning, the vent line likely needs a full cleaning or the duct needs inspection.
Heating / thermal
The dryer isn't reaching or maintaining the expected temperature.
Common causes:
- A burned-out heating element or igniter
- A blown thermal fuse (often triggered by restricted airflow)
- A failed cycling thermostat
A thermal fuse that has blown from restricted airflow is common and usually means the vent needs cleaning as well as the fuse replacing. Heating system repairs involve line-voltage or gas components and are a job for a technician.
Motor / drive
The drive motor, belt, or roller assembly isn't turning the drum as expected.
Common causes:
- A broken or worn drive belt
- A failing motor
- Worn drum support rollers or a rear bearing
A motor that hums with no drum movement, or a drum that's very loud during rotation, usually points here rather than the motor windings themselves. Drive-system repairs involve disassembling the cabinet and are best left to a technician.
Electronic control / sensor
The main control board is reporting an internal fault, or a moisture/temperature sensor is sending an unexpected signal.
Common causes:
- A power surge that affected the control board
- A failed moisture sensor strip
- A wiring fault between a sensor and the board
Unplug the dryer for 60 seconds to clear a one-off glitch before assuming a part has failed. If the code returns right away, the sensor or board needs professional diagnosis.
Why we don't list exact codes here
LG uses different control board revisions across its dryer lineup, so the same code can mean different things on different models and years. Check your model's manual for the exact code list, or call us and we can confirm it over the phone before booking a visit.
Safety note: Blocked airflow and lint buildup are the leading cause of dryer fires. If a code points to airflow or overheating and cleaning the lint filter and vent doesn't clear it, stop using the dryer until it has been inspected.
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