A Whirlpool dryer that tumbles but won't get hot is one of the most common service calls we run. 60 % of 'no heat' calls are actually a clogged vent that tripped the thermal cutoff — swapping the heating element without clearing the vent burns out the new element within weeks.
Reviewed by Mike Larson, Master Appliance Technician · 18+ yrs in-field · Last reviewed
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Quick answer
Whirlpool electric dryers (WED / Cabrio / Duet) lose heat from: (1) a clogged vent that tripped the thermal cutoff — most common; (2) a burned-out heating element; (3) a failed high-limit thermostat; (4) a failed thermistor or control-board relay; (5) a half-tripped 240V breaker. Gas Whirlpool dryers (WGD) lose heat from failed gas valve coils, a worn igniter, or a tripped thermal cutoff. Most Whirlpool dryer no-heat repairs land $215–$385 all-in. $149 trip fee waived on approval. 1-year warranty.
Root causes, ranked by what we find
What it is: Restricted airflow makes the high-limit or thermal cutoff (one-time fuse) open to protect the cabinet. The dryer still tumbles but never heats. ~60 % of Whirlpool 'no heat' calls.
Fix: Clear the full vent run (lint, kinked transition, bird nest), replace OEM thermal cutoff + high-limit kit, verify temp rise. Don't replace the cutoff alone — it'll trip again in 2–4 weeks.
Typical all-in: $215–$345 all-in
What it is: 240V heating coil burns out — usually at the coil-end touching the insulator. Tests open. Common at year 6–10. Whirlpool's 279838 / 8544771 elements are the most-replaced parts on our truck.
Fix: Replace OEM element + high-limit + thermal cutoff as a kit (Whirlpool service bulletin requires it), inspect blower wheel for lint blockage, verify temp rise to 135°F+.
Typical all-in: $245–$385 all-in
What it is: Igniter glows but gas valve never opens (or opens then drops out). Symptom: igniter glows orange 60 seconds then shuts off, dryer runs cool. Common at year 5–8.
Fix: Replace OEM gas valve coil kit (279834), verify gas valve opens and flame sustains, test temp rise.
Typical all-in: $245–$365 all-in
What it is: Silicon-carbide igniter has fractured or aged open. Symptom: no glow at all, no ignition, dryer tumbles cool.
Fix: Replace OEM igniter (279311 family), verify glow and flame establishment.
Typical all-in: $215–$315 all-in
What it is: Thermistor reads drum temperature; if it shorts or opens the board cuts heat to protect the load. Less commonly, the heat-circuit relay on the main board has welded open.
Fix: Run Whirlpool diagnostic mode, read thermistor resistance, replace OEM thermistor or main control board as confirmed.
Typical all-in: $245–$425 all-in
Diagnostic order
A half-tripped 30A double-pole breaker leaves the dryer tumbling on 120V but heat won't work on 240V. Free fix if that's the cause.
Disconnect the vent at the wall and run Timed Dry on High for 5 minutes. Strong hot airflow at the wall = vent OK. Weak / cool airflow = vent is the failure.
Pull the back panel, find the thermal cutoff on the heater housing. Open = blown by vent restriction. Replace as a kit AND clear the vent.
Disconnect element leads, read across — 8–14 Ω = good, open = burned out. Replace the kit.
Watch the igniter — glows then no flame = bad coils. No glow = bad igniter. Coil kit or igniter is OEM and on the truck.
FAQs
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.
Disconnect the vent at the wall and run High heat for 5 minutes — if hot air comes out, the element is fine and the vent was the failure. If still no heat, the element or thermal cutoff has failed. We always do a vent test before replacing a heating element.
$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. $149 trip fee credited to the repair.
On gas WGD, that's the classic gas-valve-coil failure — igniter glows, valve opens briefly, then drops out. On electric WED it's usually a marginal thermal cutoff cycling on a partly restricted vent. Both are single-visit fixes.
Yes — Cabrio (top-load matched pair), Duet (front-load), and WET stacked combos all use the same heating system as the standalone WED / WGD. We carry the door-panel removal tools and the OEM parts.
Yes — 279838 / 8544771 heating elements, 279816 thermal cutoff kits, 279834 gas valve coils, 279311 igniters, thermistors, blower wheels, drum belts, and the most-failed Whirlpool main control boards.
