3977393 Dryer Thermal Fuse for Whirlpool Maytag Roper Kenmore KitchenAid Dryers - Replaces 279816VP 3399848 - 4 Pack
SKU: 42477867349

3977393 Dryer Thermal Fuse for Whirlpool Maytag Roper Kenmore KitchenAid Dryers - Replaces 279816VP 3399848 - 4 Pack

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Description

3977393 Dryer Thermal Fuse for Whirlpool Maytag Roper Kenmore KitchenAid Dryers - Replaces 279816VP 3399848 - 4 Pack3977393 WP3977393 Dryer Thermal Fuse Key Features High Temperature Safety Cut Off: Engineered as a critical non resettable safety device that monitors the temperature of the heating element housing. It is designed to trip and break the electrical circuit if temperatures reach approximately 309F. Precision Calibrated Solder Link: Features a high sensitivity internal thermal link that reacts instantly to localized overheating, providing a vital

3977393 / WP3977393 Dryer Thermal Fuse

Key Features

  • High-Temperature Safety Cut-Off: Engineered as a critical non-resettable safety device that monitors the temperature of the heating element housing. It is designed to trip and break the electrical circuit if temperatures reach approximately 309°F.
  • Precision-Calibrated Solder Link: Features a high-sensitivity internal thermal link that reacts instantly to localized overheating, providing a vital secondary defense against dryer fires caused by heating element shorts or severe airflow restrictions.
  • Reinforced Terminal Interface: Equipped with two 1/4-inch male spade terminals designed for high-amperage stability, ensuring a secure electrical connection that resists pitting and carbon buildup over time.
  • Durable Ceramic/Polymer Housing: Encased in a heat-stabilized, high-impact housing designed to maintain structural integrity while mounted directly to the high-heat environment of the metal heater box.

Replaces / Cross-Reference Part Numbers

  • WP3977393
  • AP3094244
  • PS334299
  • 3399848
  • 279816VP
  • 3389946
  • 3398671
  • 695563
  • AH334299
  • EAP334299

Compatibility & Fitment

This high-limit fuse is a standard safety component for most Whirlpool-manufactured dryers (Electric and Gas) produced over the last 30 years. Key compatible brands include:

  • Whirlpool & Maytag: Fits hundreds of LER, LGR, MED, and MGD series models (e.g., LER4634EQ2, MEDC215EW1).
  • Kenmore (110 Series): Compatible with virtually all 110-prefix models produced by Whirlpool for Sears (e.g., 110.60852990).
  • KitchenAid, Roper, & Estate: Direct fit for dozens of budget-friendly and high-end top-lint-filter dryers.
  • Amana & Crosley: Compatible with NED, NGD, and CDE series units utilizing the 3977393 style fuse.
  • Note: Unlike the blower-housing fuse, the 3977393 is typically located on the side of the metal heating element housing.

When to Replace

  • No Heat (Electric Dryers): The dryer drum turns and the air blows, but it never gets warm. This is the most common symptom of a blown 3977393 fuse on the heater box.
  • Dryer Won't Start (Certain Models): In some Whirlpool-built designs, a blown high-limit fuse is wired in series with the motor, preventing the unit from starting entirely.
  • "Check Vent" Light Stays On: If your dryer senses extreme back-pressure and heat, it may blow this fuse before you have a chance to clean the duct.
  • Dryer Shuts Off Mid-Cycle: The unit stops unexpectedly as the heater housing reaches unsafe temperatures, cutting power to the system.
  • Continuity Test Failure: Use a multimeter to test for continuity. If the fuse shows "Open" (no beep), the internal link has melted and the part must be replaced.

Installation Tips

  • Safety First: You MUST unplug the dryer. Since this fuse is part of the high-voltage heater circuit, attempting this repair while the unit is plugged in is extremely dangerous.
  • Access the Heater Box: On most models, you must remove the rear panel of the dryer. Locate the metal cylinder or box that houses the heating element; the 3977393 fuse is mounted to the side of it.
  • Inspect the Thermostat: This fuse is often paired with the **3387134 High-Limit Thermostat**. If the fuse is blown, it is highly recommended to inspect or replace the thermostat at the same time.
  • Clean Your Vents (CRITICAL): A thermal fuse blows for a reason—usually a clogged dryer vent. Before installing the new fuse, use a vacuum to clean out the internal blower housing and the exhaust ducting all the way to the outside wall.
  • Tighten the Connections: Ensure the wire terminals are tight when you push them onto the new fuse. Loose connections create heat, which can lead to premature fuse failure or melted wires.
Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42477867349

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Craigdog
Alexandria, US
★★★★★ 5
Quality product you
Model: 18 SqFt(1.7 SqM), Model: 18 SqFt(1.7 SqM)
Summary: Great quality product, priced right. Cuts and installs easy-follow the instructions people!! PRO TIP-you don’t need to cover every square inch. OVERKILL!! Think about it-when a bell rings you could put your fingers on the edge and silence it right? Same rules apply here. A strip or square will isolate the vibration and notice when placed correctly— knock on the surface and see what vibrates or what part makes the loudest drowning and that’s a good clue of where you should put a piece of this…unless you’re trying to use it for temperature insulation no need to go ape on it. If you look at the bottom of a stainless steel sink, it’s got a stripe or a small sticker of insulation that keeps it from rattling. You can do that here. What’s important to note is the instruction specifically say use a roller to roll the ribs out until it’s smooth that way you’ve got maximum adhesion. I see a lot of pictures and videos from people that finished their install and didn’t follow this simple instruction. It makes sure that it’s stuck down before you put all your paneling and carpet back in and it’s a small step with a cheap wooden roller it’s easy. I’ll say the installation with this product is a breeze. You can use sharp scissors or a blade. It does get gummy after a while, and you may need to clean off your blade or your scissors, but it cuts very well and the ribs make it easy to size in space the thickness is fantastic and the backing paper comes off quite easily. I’ve done lots of installations with Graphics emblems you name it and this product is very easy to use and represents good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
S
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Shopper
Grantham, US
★★★★★ 5
Good stuff !
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
This is an excellent product. Easily moldable, cuttable with good scissors or razor knife, very sticky, works great. This pack was enough to do all 4 doors on a crew max truck, and I went wild on the fronts. I used 9 peices on each rear door which was just enough, and the rest on the fronts. I doubled up layers and even used some on the back of the door panels. If you follow the instructions and dont go wild you might even have extra left over. It works just like you would imagine. Without doing the entire cab there will still be road noise but this helped noise, better audio, no buzzing door panels, terrific improvement. It is kind of heavy, so extra weight is added to truck, but that really isnt a bad thing. It is noticable but in a good way. Get it. Use it.
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Reviewed in the United States on March 20, 2026
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Odin M Turner
Omaha, US
★★★★★ 4
Good product
Model: 36 SqFt(3.4 SqM)
Easy to roll out. Works great  Why did you pick this product vs others?: Fair price for the amount of coverage, good quality  Works well: Easy to install, rolls out great. Forms to contours well
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Reviewed in the United States on July 13, 2025
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BRIAN HEATH
Cuba, US
★★★★★ 5
Great product
Model: 36 SqFt(3.4 SqM)
I used this on the doors of a Toyota Tacoma, worked as it described. Reduced the road noise significantly.. Need to buy another box for the floor and roof of the truck..
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Reviewed in the United States on May 15, 2026
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TimtheK
Boise, US
★★★★★ 5
Great product - Add foam product for complete solution
Model: 36 SqFt(3.4 SqM)
Used in two cars with speaker upgrades. Easy to install but get the roller for assured adhesion.removes "tinnyness" from large metal resonators. Use with foam absorptive material for a complete system.
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Reviewed in the United States on April 14, 2026

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