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
  • Free Standard Shipping on $100+ Orders to the USA.
  • 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]
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SKU: 42477867349

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J
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J
West Palm Beach, US
★★★★★ 4
Not invincible but good value
Color: 5pack, Size: Large
Great value for the money. We have 3 dogs and they are pretty strong chewers. They lasted a few months but ultimately succumbed to their inevitable doom. They arrived well packaged and with no unusual odors.
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Reviewed in the United States on April 28, 2026
A
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Amazon Customer
Cuba, US
★★★★★ 5
One of the best indestructible dog toys we've bought
Color: 5pack, Size: Large
So we adopted a pup in December and she tears up everything! I mean, Everything! My CPAP, garden hoses, trucks seat belt and backup camera wiring. Every single dog toy with stuffing, dismantle them in minutes. So many dog toys say they are are tear proof. nope! We have tons of stuffing all over our 5 acres. Hen m wife bought these. Beside the bones she bought, these are the only things she can't seem to destroy and she loves them!!!!
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Reviewed in the United States on June 3, 2026
S
Verified Purchase
susan said so
Port Orchard, US
★★★★★ 5
BEST Dog Toys EVER! JRT approved
Color: 5pack, Size: Large
🌟 🌟 🌟 🌟 🌟 for these toys! We have terriers who have NEVER met a toy they couldn't destroy... until now. We've had them over a week an all 5 are still intact, crinkly, and squeakers squeaking - and they're played with constantly! When I tell you I've never, in all my years of JRT ownership and rescue, had a toy last 24 hours, much less a WEEK? Well, lots of you will know how astonishing that is! We've currently got 5 dogs (2 fosters, anyone looking for a project?) so the package size is perfect. Get 'em.
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Reviewed in the United States on May 11, 2026
P
Verified Purchase
Palm Tree Villa
Fort Morgan, US
★★★★★ 5
Great toy, they go the distance!
Color: 5pack, Size: Large, Color: 5pack, Size: Large
Best typy of toys for my pups. Love them. They last!! Chewing tug games. Love them. The squeakiest don’t come out ! Big plus’s. and don’t last long with my dogs, which for me is a big plus’s. Those squeakier drive me crazy!! If they get too yucky, toss them in the washer/dryer! Good to go again.
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Reviewed in the United States on March 29, 2026
J
Verified Purchase
Joan Brown
Belleville, US
★★★★★ 4
String but not indestructible.
Color: 5pack, Size: Large
They’re cute and strong for a dog that likes to bite into toys. Not indestructible.
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Reviewed in the United States on February 13, 2026

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