Quick answer: A Whirlpool dryer that runs but won't heat is almost always one of three problems: a burned-out heating element (electric), a tripped thermal fuse, or a faulty cycling thermostat. The most common fix is replacing the heating element — OEM part WP3387747 — which costs around $60 and takes 45 minutes with a Phillips screwdriver and multimeter.
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Most likely culprit: Burned-out heating element (55% of cases).
Time to fix: 45-60 minutes.
Difficulty: Medium — requires opening the back panel.
If your Whirlpool dryer tumbles but produces no heat, the cause is usually one of three failures ranked by frequency: heating element burned out (55%), thermal fuse tripped (30%), or cycling thermostat failed (15%). This guide shows how to diagnose which one in 10 minutes — and which OEM part fixes it.
Cause 1 — Heating element burned out (55%)
After 5-10 years of heat cycles, the nichrome wire inside the heating element snaps. Symptoms: dryer runs full cycle but clothes stay damp and cool.
How to confirm:
- Unplug dryer.
- Remove back panel (4-6 screws).
- Locate the heating element — black metal cylinder ~12 inches long.
- Set multimeter to ohms. Touch probes to the element terminals. Reading should be 10-50 ohms. Infinite = burned out.
The fix: Replace heating element. OEM WP3387747. Typical price $50-$70. Difficulty: Medium — 45 min job.
See Whirlpool Heating Element WP3387747 →
Cause 2 — Thermal fuse tripped (30%)
The thermal fuse is a one-time safety device that blows when the dryer overheats — usually because of clogged vent ducts. Symptoms: same as #1 (no heat, runs normally).
How to confirm:
- Locate thermal fuse on the blower housing (white plastic, 2 wires).
- Multimeter on continuity setting. Touch probes to the fuse terminals. Beep = good. Silent = blown.
The fix: Replace thermal fuse (~$10-$15) AND clean the vent duct from dryer to outdoors. If you skip the duct cleaning, the new fuse will blow within weeks. Difficulty: Easy — 15 min.
Cause 3 — Cycling thermostat failed (15%)
The cycling thermostat regulates dryer temperature by cycling the element on/off. When it fails open, no heat. When it fails closed, dryer overheats (rare).
How to confirm:
- Locate cycling thermostat (small metal disc, 2 wires, on blower housing).
- Multimeter on continuity. At room temperature, should read continuity (closed). Silent = failed.
The fix: Replace cycling thermostat. OEM WP3387134. Typical price $25-$35. Difficulty: Easy — 20 min.
See Whirlpool Cycling Thermostat WP3387134 →
Specs at a glance
| Item | Detail |
|---|---|
| Compatible models | WED4815EW, WED4900XW, WED5000DW, WED75HEFW, +60 more |
| Typical part cost | $50-70 (element) / $10-15 (fuse) / $25-35 (thermostat) |
| Repair time | 45-60 min (element), 15 min (fuse), 20 min (thermostat) |
| Tools needed | Phillips screwdriver, 1/4" nut driver, multimeter |
| OEM (element) | WP3387747 (replaces 3387747, AP6008281) |
How to find your Whirlpool dryer model number
Open the dryer door — sticker is on the door frame (left or top). Format: WEDxxxxx (electric) or WGDxxxxx (gas). Match against compatibility list before ordering.
Frequently asked questions
Q: My dryer is gas — same diagnosis?
A: Different. Gas dryers have an igniter, gas valve coil, and flame sensor instead of an electric heating element. Most common gas-dryer no-heat issue: failed igniter (~$30-$50, OEM 279311).
Q: How can I prevent the heating element from failing again?
A: Clean the vent duct yearly. Restricted airflow makes the element work overtime, shortening lifespan from 10 years to 3-5 years.
Q: I replaced the element but still no heat. What now?
A: Two possibilities: (1) The thermal fuse blew when the element failed — replace it too. (2) The high-limit thermostat (different from cycling thermostat) failed — test it on the element housing.
Q: Is it safe to run the dryer to test before replacing parts?
A: Run a 5-minute test only. If you smell burning or the dryer cabinet gets hot to touch, stop immediately — there's likely an airflow restriction that's overheating components.
Q: How long should a Whirlpool dryer heating element last?
A: 8-12 years with proper venting. 3-5 years with neglected vent ducts.
Related parts you may need
- Whirlpool Dryer Cycling Thermostat WP3387134 — companion replacement
- Whirlpool Dryer Door Switch WP3406107 — common no-start cause
- Whirlpool Dryer Drum Roller 12001541 — replace if drum squeaks
When to call a professional
- Gas leak smell — stop immediately, ventilate, call gas company
- Sparks from element terminals — wiring issue, call electrician
- Repeated thermal fuse blows even after vent cleaning — internal airflow problem
For the symptoms above, DIY is safe and saves $200+ in service fees.
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Written by Vinh Nguyen · Founder of RepairKitHub. Researches OEM appliance parts compatibility daily.
Last updated: 2026-05-08