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LG · NO HEAT

LG Dryer Not Heating Twin Cities Same-Day LG Repair

An LG dryer that tumbles but won't get hot is almost always one of five parts — and we carry every one of them on the truck. Electric (DLE / DLEX) failures cluster on the heating element and thermal cutoff; gas (DLG / DLGX) failures cluster on the gas valve coils and igniter.

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Reviewed by Mike Larson, Master Appliance Technician · 18+ yrs in-field · Last reviewed

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Quick answer

LG Dryer Not Heating

LG electric dryers (DLE, DLEX) lose heat from a failed heating element, a tripped thermal cutoff (which protects against a clogged vent), a failed thermistor, a control board relay, or a tripped half-leg of the 240V supply. Gas LG dryers (DLG, DLGX) lose heat from failed gas valve coils, a worn igniter, a tripped thermal cutoff, or a faulty flame sensor. We diagnose in order — never just swap the element — because 60 % of 'no heat' calls are actually a clogged vent that tripped the cutoff, and replacing the element without clearing the vent burns out the new one within 30 days. Most repairs land $215–$385 all-in. Flat $149 trip fee waived on approval. 1-year warranty.

Root causes, ranked by what we find

Most-likely failures (by frequency)

1. Clogged dryer vent tripped the thermal cutoff (most common root cause)

What it is: On both electric and gas LG dryers, restricted airflow makes the high-limit thermostat or thermal cutoff (one-time fuse) open to protect the cabinet from fire. The dryer still tumbles but never heats. 60 % of LG 'no heat' calls are this — clogged vent + tripped cutoff.

Fix: Clear the full vent run (lint, bird nest, kinked transition), replace the OEM thermal cutoff and high-limit as a kit, verify temp rise. Skipping the vent clear means the new cutoff trips again in 2–4 weeks.

Typical all-in: $215–$345 all-in

2. Failed heating element (electric DLE / DLEX)

What it is: The 240V heating coil burns out — usually at the coil-end where it touches the insulator. Tests open on a multimeter. Common at year 6–10 on hard-running LG electric units.

Fix: Replace OEM heating element + high-limit + thermal cutoff as a kit (LG's service bulletin requires it), inspect blower wheel for lint blockage, verify temp rise to 135°F+.

Typical all-in: $245–$385 all-in

3. Failed gas valve coils (gas DLG / DLGX)

What it is: Igniter glows but the gas valve never opens (or opens then drops out) — the coils on top of the gas valve have failed. Symptom: igniter glows orange for 60 seconds then shuts off, dryer runs cool. Common at year 5–8.

Fix: Replace OEM gas valve coil kit, verify gas valve opens and flame sustains, test temp rise.

Typical all-in: $245–$365 all-in

4. Worn or open igniter (gas DLG / DLGX)

What it is: Silicon-carbide igniter has fractured or aged open. Symptom: no glow at all, no burner ignition, dryer tumbles cool.

Fix: Replace OEM igniter, verify glow and flame establishment.

Typical all-in: $215–$315 all-in

5. Failed thermistor or control-board heat relay

What it is: The thermistor reads drum temperature; if it shorts or opens the control board cuts heat to protect the load. Less commonly, the heat-circuit relay on the main board has failed welded-open or open.

Fix: Run LG diagnostic mode, read thermistor resistance, replace OEM thermistor or main control board as confirmed.

Typical all-in: $245–$425 all-in

Diagnostic order

How to diagnose an LG dryer that won't heat

  1. 1. Confirm both legs of 240V are live (electric)

    Check the breaker — a half-tripped 30A double-pole breaker gives you a dryer that tumbles (120V) but won't heat (240V). Free fix if that's the cause.

  2. 2. Check the vent for restriction

    Disconnect the vent at the wall and run a Timed Dry on High for 5 minutes. Strong, hot airflow at the wall = vent is OK. Weak / cool airflow = vent is the failure.

  3. 3. Test the thermal cutoff and high-limit

    Pull the back panel, find the thermal cutoff (one-time fuse) on the heater housing. Open = blown by vent restriction. Replace as a kit and clear the vent.

  4. 4. Test the heating element (electric)

    Disconnect element leads, read across — 8–14 Ω = good, open = burned out. Replace the kit.

  5. 5. Test gas valve coils (gas)

    Watch the igniter — glows then no flame = bad coils. No glow = bad igniter. Coil kit or igniter is OEM and on the truck.

FAQs

Common questions

Why won't my LG dryer heat but it still tumbles?

Most often a clogged vent that tripped the thermal cutoff, or a burned-out heating element (electric) / failed gas valve coils (gas). Tumble runs on 120V; heat needs 240V (electric) or working gas valve + igniter (gas). Repair lands $215–$385 all-in.

How do I know if it's the heating element or a vent problem?

Disconnect the vent at the wall and run High heat for 5 minutes — if airflow comes out hot, the element is fine and the vent was the problem. If still no heat, the element or thermal cutoff has failed. We always do a vent test before replacing a heating element because a clogged vent burns out a new element in weeks.

How much does LG dryer no-heat repair cost in Minneapolis?

Most LG 'no heat' repairs are $215–$425 all-in. Vent / thermal-cutoff $215–$345, heating element kit $245–$385, gas valve coils $245–$365, igniter $215–$315, thermistor / control board $245–$425. The $149 trip fee is credited to the repair.

Why does my LG dryer heat for a few minutes then stop?

On gas units, that's a classic gas-valve-coil failure — igniter glows, valve opens briefly, then drops out. On electric units it's usually a marginal thermal cutoff cycling on a partly restricted vent. Both are single-visit fixes.

Do you service LG WashTower and stacked units?

Yes — DLEX / DLGX WashTower units have the same heating system as the standalone dryers. We carry the door panel removal tools and the OEM parts. Stacked installations get a small access surcharge if pulling the unit out is required.

Do you carry OEM LG dryer parts on the truck?

Yes — heating elements, thermal cutoff kits, gas valve coils, igniters, thermistors, blower wheels, drum belts, and the most-failed LG main control boards are stocked across DLE, DLG, DLEX, DLGX, and WashTower.

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