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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4.2 ★★★★★
Based on 29 reviews
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Nani
West Palm Beach, US
★★★★★ 3
Good but not for my dog
Color: A Red, Size: For Larege Dogs
Dog loves it but already falling apart. Can't seem to find a truly safe dog toy that won't come apart with my aggressive chewer. Had to toss it before pieces got ingested. But great toy in the begining. Just not safe for pit/staff type dog that destroy and chew.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
M
Verified Purchase
Mayberry mommy
Pawtucket, US
★★★★★ 5
Put your aggressive Chewer dog to the test!
Color: A Red, Size: For Larege Dogs
A very tough toy to stand up to my aggressive chewer lab! It's a great value! The squeak is not annoying, and she's got to clamp down hard on it. It's a nice throw toy! It bounces once or twice but it still brings out the pup in our Dog! Not too small a nice size for a Lab or retriever
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
M
Verified Purchase
Mo
Waukegan, US
★★★★★ 5
A Hardy Toy for Chewers
Color: Bule Octopus, Size: For Larege Dogs, Color: Bule Octopus, Size: For Larege Dogs
I must say I was very surprised with the durability of this toy. We've had it for 3 days and not one puncture hole. My rescue is a destroy chewer that doesn't care for Hardy chew toys unless it squeaks. While the squeaker isn't the best, he still loves it. We put peanut butter in the grooves for him and he goes to town. Will purchase again should he ever destroys it, worth the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
J
Verified Purchase
Jeffrey Brown
Bozeman, US
★★★★★ 5
Durable toy for a great price! Will buy again.
Color: A Red, Size: For Larege Dogs, Color: A Red, Size: For Larege Dogs
Great toy, heavy, good size, and durable for active chewers. My two dogs like to play tug a war a lot and this toy has held up fantastically! Afterwards they tend to chew toys to pieces but this one has stood the test of time so far. Great buy!
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Reviewed in the United States on May 14, 2026
S
Verified Purchase
SHUGRLTARA
Los Angeles, US
★★★★★ 4
Very tough & VERY heavy
Color: A Red, Size: For Larege Dogs
My dog is a half black lab/half pittie & a very aggressive chewer she goes through toy bones very quickly, to the point they're so slivered up within 2 days, sometimes slightly longer, I have to get rid of them, they never last long, except for whole antlers and some split antlers. Although she rarely touches the whole antlers . Anyways, this is a great tough toy for strong large breeds. It squeaks in the center if you squeeze hard enough but the toy/bone was a bit too heavy for my girl. I got her the next smaller one and she still plays with the big heavier one more than the one that fits her perfectly so go figure. It's a great product and definitely recommend for heavy chewers. I only took a star off because of the weight I was extremely surprised by how heavy it was, but that's not necessarily a bad thing depending on the dog, this size is just not for my dog. I think I've had it about a month and she does play with it, not as much as her other toys, but it's still in amazing shape even with her heavy chewing.
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Reviewed in the United States on April 21, 2024

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