Description
🧾 Description
Ensure safe and reliable dryer performance with the WP3979617 Thermal Fuse (High Limit) — a genuine OEM replacement engineered by Whirlpool.
This thermal fuse acts as a safety device that prevents the dryer from overheating. When the internal temperature rises above safe levels, the fuse cuts power to the heating element or motor, protecting both the appliance and your home. If your dryer suddenly stops heating or won’t start at all, a blown thermal fuse is often the cause.
Constructed from heat-resistant materials, the WP3979617 offers dependable temperature cutoff protection and long-lasting performance. It’s an essential safeguard that ensures your dryer operates efficiently and safely for years to come.
⚠️ Note: Always unplug your dryer before installation. Once a thermal fuse blows, it cannot be reset — it must be replaced. Verify your dryer model number to ensure proper fit.
⚙️ Features & Benefits
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✅ Genuine OEM part — ensures perfect fit, safety, and durability
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🔥 Protects dryer from overheating by interrupting power at high temperature
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💡 Restores dryer function when replaced after a blown fuse
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🔧 Quick and simple installation with basic household tools
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🧺 Essential safety component that helps prevent fire hazards and equipment damage
⚠️ Common Symptoms
You may need to replace the WP3979617 Thermal Fuse if you notice:
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Dryer runs but does not heat
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Dryer won’t start at all
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Dryer stops mid-cycle and won’t restart
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No power to heating element or motor
🔧 Compatible Model List
Fits numerous dryers from Whirlpool, Kenmore, Maytag, Amana, Crosley, Roper, and Estate.
Common compatible models include (but are not limited to):
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Whirlpool: WED4815EW1, WED5000DW2, LER4634EQ2
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Kenmore: 110.66812690, 110.69822801, 110.60052990
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Maytag: MEDC215EW1, MEDB835DW4, MEDC400VW0
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Amana: NED4655EW1, NED4600YQ0, NED7200TW10
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Crosley: CDE4205AYW, CDE5500GW0
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Roper: RED4440VQ1, REX6634PQ1
🔁 Cross Reference
Replaces and supersedes part numbers:
3979617, WP3979617VP, 3392519, 3399848, 3399849, 3399693, AP6009129, PS11742274
🧩 Compatibility Notes
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Check the model number tag (usually found inside the dryer door frame or on the back panel) to confirm compatibility.
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Commonly mounted on the blower housing or heater box.
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If the fuse has blown, inspect your dryer vent and exhaust system — clogged vents often cause overheating and fuse failure.
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For the best repair results, consider replacing together with the high-limit thermostat (WP3976570) and cycling thermostat (WP3977678).