Lg Washer Dryer Not Heating

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   Stop the washer-dryer and inspect only from a safe position for smoke, burning or melting-plastic odor, sparking, a hot or damaged cord, water near electrical parts, a damaged drum or cabinet, or gas odor if the installed model uses gas.

   Expected result: Record whether a fire, electrical, water, mechanical, or gas hazard is present and whether the load is hot, soaked, or otherwise unsafe to handle.

   Next step: Keep the unit off. Disconnect power only at a safely accessible disconnect and shut off a gas supply only if the installation instructions make that accessible without approaching a leak; leave a gas-smelling area and contact the appropriate emergency or utility service from outside. Arrange qualified appliance service for electrical, water, or mechanical hazards.

   Stop if: Do not restart, run a dry cycle, touch wet electrical parts, open panels, or continue using a unit that smokes, sparks, smells of melting plastic or gas, or has a hot or damaged cord.

   Why this matters

   Why: A hazard overrides heating diagnosis. A normal exterior permits only ordinary-access checks; it does not make live electrical, heater, fan, gas, or ventilation work safe.

2. Check 2

   Record the exact cycle, selected wash temperature or dry option, load size, whether the drum turns, whether wash water becomes warm, whether dry air or the door area warms, and any display indication.

   Expected result: Classify the symptom as wash water below target, drying air cold, drying very slow, wet laundry from incomplete spin, cycle advancing normally, or a recurring error such as dHE.

   Next step: Use the exact model manual and the matching branch below rather than testing a heater when the complaint is actually wash-water timing or spin performance.

   Stop if: Stop if the symptom is accompanied by a hazard, repeated breaker operation, a door or drum problem, or an error the model manual does not explain.

   Why this matters

   Why: Cold wash water can reflect cold incoming water and LG's time-limited energy behavior; cold drying can reflect load, water, drainage, filtration, ventilation, sensor, fan, heater, or control issues. A displayed error narrows the system but does not identify a user-replaceable part.

3. Check 3

   For a drying complaint, use laundry that has completed spin, stay below the model's maximum drying capacity, and select the documented dry or time-dry option; for a wash complaint, use the intended temperature cycle and allow for the incoming water temperature.

   Expected result: Record whether the load is roughly within the dry capacity, whether items are dripping wet, whether Energy Saver or another low-heat choice is active, and whether a dry-only cycle produces warm air.

   Next step: Reduce or split the load, run the required spin, turn off Energy Saver only where the model provides that option, and make one attended dry test using the manual's setting.

   Stop if: Do not exceed the dry capacity, dry items that the care label forbids, or keep running a load that produces smoke, unusual heat, or a burning odor.

   Why this matters

   Why: LG says large loads, laundry that has not completed spin, fabric type, and a lower default combo drying setting can lengthen drying or make clothes appear not heated. On applicable dryer models, Energy Saver air-dries for much of the cycle. A correctly loaded dry-only test that remains cold points beyond cycle selection.

4. Check 4

   For a combo drying complaint, confirm the accessible water-supply valve is open and inspect the drain hose for kinks, compression, or a low spot holding water; do not pull the appliance out if doing so strains hoses or wiring.

   Expected result: Record whether the valve is closed, water enters or drains during drying, the hose is straight and lies as the model requires, or water remains in the hose and produces knocking or thumping.

   Next step: Open only an accessible valve and correct only a safe external hose position allowed by the manual, then run one dry-only test. If the symptom persists or the hose or connection is damaged, stop and arrange service.

   Stop if: Do not disconnect water or drain fittings under pressure, move the machine alone, bypass a leak, or operate with water near electrical parts.

   Why this matters

   Why: LG says combo drying uses a small amount of water and expels humid air through the drain hose; a closed valve or water retained in the hose can reduce drying efficiency. A normal valve and free drainage with cold air points toward filtration, fan, heater, sensor, control, or service diagnosis.

5. Check 5

   With the unit off, cool, and unplugged where the manual requires it, clean the accessible lint filter, heat exchanger, drain-pump or related filter, and humidity sensor only if that exact model provides them and the manual describes access.

   Expected result: Record whether the filter or exchanger is clogged, a Clean Filter or Empty Water Tank indication remains, the sensor has residue, water passes through the documented filter, and airflow or drying improves after maintenance.

   Next step: Restore every filter, cover, and sensor area dry and correctly, then run one attended dry test. If the indication remains, the fan is abnormal, or heating does not return, request service.

   Stop if: Do not reach into a moving fan, wash an inaccessible electrical component, use flammable cleaners, or remove a heater or exchanger cover not designated for user maintenance.

   Why this matters

   Why: LG identifies lint, heat-exchanger condition, water-tank state, and humidity-sensor cleanliness as drying-performance factors. A clean accessible path with cold air or a recurring indication suggests an internal fan, heater, sensor, control, or wiring issue.

6. Check 6

   If the model has a vented dryer path, check only the accessible lint and exhaust path for crushing or blockage; if a dHE or similar drying-system indication appears, follow the exact model's safe restart instructions once rather than opening the unit.

   Expected result: Record whether outside airflow is weak, a hose is crushed, the display returns to normal after the documented restart, or the same drying error returns.

   Next step: Correct only an accessible external airflow obstruction, or perform the exact model's documented restart with the unit cool and empty. If dHE returns, airflow remains restricted, or the drum stays cold, keep the unit off and arrange service.

   Stop if: Do not bypass a venting or thermal indication, run the dryer with a blocked exhaust, modify ducting, or test fan, heater, wiring, or voltage live.

   Why this matters

   Why: LG links restricted dryer airflow with long or poor heating performance and says dHE can indicate a drying fan motor or electrical issue. A one-time recovery after a temporary glitch is different from a recurring error, no airflow, or a cold drum.

7. Check 7

   After the applicable cycle, load, water, drain, filter, sensor, and airflow checks, run one short attended wash-temperature or dry-only test and stop at the first hazard, abnormal heat, error, or control problem.

   Expected result: Record whether wash water warms as expected for the selected program, whether dry air becomes warm, whether the drum turns, whether moisture exits normally, and whether the same error or cold condition returns.

   Next step: Keep the unit off if heating remains absent or unsafe and arrange LG washer-dryer service with the model, cycle, load, water and drain observations, filters, airflow, error, and test result.

   Stop if: Do not repeat failed tests, disassemble the cabinet, bypass thermal or door protection, or replace a heater, fan, sensor, or control by symptom alone.

   Why this matters

   Why: Improvement after correcting a program, load, water, drainage, filter, sensor, or airflow condition supports that condition as a contributor. Persistent cold air, no wash-water heat on a cycle that should heat, recurring dHE, or a breaker or odor issue requires professional diagnosis and does not identify a safe part.