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Home/Washer & Dryer Parts/Dryer Thermal Fuse/3977394
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3977394 Dryer Thermal Cut-Off Fuse Kit Compatible with Whirlpool Kenmore Maytag KitchenAid Roper, Replaces 279769 AP3094224 3389946 3398671 695563 80001
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Aftermarket Replacement · Factory Direct
OEM-compatible part built to original specifications. Not manufactured by or affiliated with the original equipment brand.

3977394 Dryer Thermal Cut-Off Fuse Kit Compatible with Whirlpool Kenmore Maytag KitchenAid Roper, Replaces 279769 AP3094224 3389946 3398671 695563 80001

SKU: 3977394
OEM RetailBranded
$13.33
Via distributor
Source: PartsDr.com · Jan 2026
OEM brand & packaging
Factory direct price
1-year warranty
Our PartBest Value
$9.99
Factory direct
OEM-Compatible
Meets OEM specifications
Factory direct price
1-year warranty
Save by going factory direct
OEM-compatible · no distributor markup
$3.34
25% less than OEM retail
Order within --:-- to ship today
Repair Time20-30 Minutes
DifficultyEasy
DIY FriendlyYes
Tools Needed
14" Nut DriverPhillips ScrewdriverMultimeterWork Gloves
Qty
Ships from China · 10–20 business days
No sales tax outside CA
or
3977394 Dryer Thermal Cut-Off Fuse Kit Compatible with Whirlpool Kenmore Maytag KitchenAid Roper, Replaces 279769 AP3094224 3389946 3398671 695563 80001
$11.99 Original price was: $11.99.$9.99Current price is: $9.99.
In Stock

This Part Fixes These Problems

No Heat

Dryer drum spins normally but generates zero heat — clothes come out completely wet after a full cycle.

Won't Start

Dryer does not respond when the start button is pressed, often after an overheating event caused by a clogged lint filter or exhaust duct.

Takes Too Long to Dry

Multiple cycles required to dry a single load — often an early sign that the thermal fuse is partially degraded or the high-limit thermostat is cycling incorrectly.

Dryer Runs Too Hot

Dryer overheats and shuts off mid-cycle; the safety fuse has not yet fully blown but thermostat is failing to regulate temperature properly.

Repair Guides

OEM vs Aftermarket 279769 Thermal Cut-Off Kit: Honest Breakdown for Whirlpool & Kenmore Dryers
May 30, 2026
Whirlpool Dryer Not Heating or Overheating — 4 Causes & How to Fix
May 29, 2026
OEM vs Aftermarket Thermal Cut-Off Fuse for Whirlpool Dryers: Honest Comparison (3977394)
May 28, 2026
How to Extend Your Whirlpool Dryer Thermal Cut-Off Life — Maintenance Guide
May 27, 2026
Whirlpool & Kenmore Dryer Thermal Cut-Off Kit Parts — Models & Compatibility
May 23, 2026

Product Description

Why Choose Our 3977394 Dryer Thermal Cut-Off Fuse Kit?

🔧
Built to OEM SpecificationsThermal cut-off fuse rated at 360°F and high-limit thermostat rated at 250°F (L250-80F) — identical trip points to the original Whirlpool 279769 kit.
🔁
Wide Cross-Reference CoverageDirectly replaces OEM part numbers 279769, AP3094224, PS334278, 3389946, 3398671, 3387812, 279769VP, 279548, 695563, 80001, 2821, 2004, EAP334278 — one part covers them all.
🏷️
Broad Brand CompatibilityFits Whirlpool, Kenmore, Maytag, KitchenAid, Roper, Estate, Crosley, Amana, Inglis, Admiral, and Magic Chef electric dryers — covers hundreds of models from 1985 onward.
🛡️
Safety-First DesignThe thermal fuse acts as a one-time safety device that permanently opens the circuit when the dryer overheats — protecting your home from fire risk caused by blocked venting or a failing heating element.
⚙️
Kit Includes Both Critical PartsComes with the thermal cut-off fuse (360°F) AND the high-limit thermostat (250°F) — replacing both at the same time is best practice recommended by professional technicians.
🪛
Easy DIY InstallationLocated on the heating element housing at the back of the dryer. Remove the back panel, disconnect two wires per component, swap the parts, and reconnect — most repairs done in 20–30 minutes with a basic 1/4" nut driver.

💡 Pro Tip: How to Confirm Your Thermal Fuse Is Blown

Your part is likely the culprit if you notice any of the following:

⚠️ Dryer runs but produces zero heat — drum spins, clothes stay wet

⚠️ Dryer will not start at all after a recent overheating event

⚠️ Clothes take 2–3 cycles to dry when they used to dry in one

⚠️ Dryer trips off mid-cycle, especially when lint filter or exhaust duct is clogged

🔬 Use a multimeter set to continuity mode: probe both terminals of the thermal fuse. A good fuse reads continuity (beep/0 Ω). No continuity = blown fuse, replace immediately. Pro tip: always inspect and clean the exhaust duct before installing the new kit — a restricted vent is the #1 root cause of repeat fuse failures.

📦 What's in the Box

✅ 1× Thermal Cut-Off Fuse (rated 360°F / 182°C)

✅ 1× High-Limit Thermostat (rated 250°F / L250-80F)

Questions & Answers

Does this kit fit both electric and gas Whirlpool dryers?
Answered by Support Team  ·  Mar 15, 2024
The 3977394 thermal cut-off kit is designed for electric dryer models. On electric dryers, the thermal fuse and high-limit thermostat are mounted on the heating element housing. Gas dryer models use a different thermal fuse location (burner assembly) and typically require a different part number. Always verify your model number before ordering.
My dryer has no heat but the drum still spins — is this part the cause?
Answered by Support Team  ·  Nov 20, 2023
Yes, this is the most common symptom of a blown thermal fuse. The 3977394 fuse sits in series with the heating element circuit only — when it blows, the motor and drum continue to run normally but all heat is cut off. Confirm with a multimeter: set to continuity mode and touch both terminals of the fuse. No continuity (no beep) confirms the fuse is open and must be replaced.
The fuse I replaced blew again after just a few loads. What's wrong?
Answered by Support Team  ·  Jan 8, 2025
A repeat-blow fuse is almost always caused by the root problem not being fixed — the fuse itself is just a symptom. The #1 cause is restricted airflow: check the lint filter (clean it), the entire exhaust duct run (remove and inspect for kinks, blockages, or crushed sections), and the exterior vent cap (confirm it opens freely). Other causes include a failed cycling thermostat, a defective heating element grounding out, or a faulty motor. Fix the root cause before installing another fuse.
Do I need to replace both the fuse and the thermostat, or just the blown fuse?
Answered by Support Team  ·  Jul 22, 2024
Professional technicians always recommend replacing both components at the same time. The high-limit thermostat (250°F) works together with the thermal fuse (360°F) as a two-stage overheat protection system. If the thermostat had been functioning correctly, it would have cut power before temperatures reached 360°F and blown the fuse. A failing thermostat is often what caused the fuse to blow in the first place. This kit includes both parts — replace them together for a complete, reliable repair.
Is this an OEM part or aftermarket? Will it fit exactly like the original?
Answered by Support Team  ·  Feb 10, 2026
This is a high-quality aftermarket replacement part built to meet OEM specifications — same 360°F fuse rating, same 250°F (L250-80F) thermostat rating, and identical mounting dimensions and spade connector sizing as the original Whirlpool 279769 kit. It is a direct drop-in replacement requiring no modifications. While it is not made by Whirlpool, it meets the same performance and safety standards at a fraction of the OEM price.

We typically respond within 1 business day. Include your appliance model number for the fastest answer.




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    Disclaimer: Compatibility information, part numbers, and model fitment data on this page are sourced from manufacturer databases and third-party references. While we strive for accuracy, please verify your appliance model number before ordering. Heima is not responsible for errors or omissions in compatibility listings.

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