Description
🧾 Description
Restore your dryer’s heating performance and protect it from overheating with the WP3977456 Thermal Cut-Off Kit, a genuine OEM replacement by Whirlpool.
This kit includes both the thermal cut-off fuse and high-limit thermostat, which work together to prevent the dryer from reaching dangerously high temperatures. When the dryer overheats, the thermal cut-off fuse blows to stop power to the heating element, ensuring your safety and preventing fire hazards.
If your dryer stops heating but still runs, or repeatedly blows fuses, this kit provides a reliable fix. Made with high-quality, heat-resistant components, the WP3977456 kit ensures long-term protection and restores your appliance to safe operating condition.
⚠️ Note: Always unplug your appliance before installation. Both components in this kit must be replaced together to prevent future overheating. Verify compatibility with your model before purchase.
⚙️ Features & Benefits
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✅ Genuine OEM kit — includes the thermal cut-off fuse and high-limit thermostat
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🔥 Prevents overheating and protects your dryer’s heating circuit
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💡 Restores heating function when the dryer runs but doesn’t produce heat
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🔧 Easy installation — no soldering or complex wiring required
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🧺 Improves safety and reliability of your dryer’s heating system
⚠️ Common Symptoms
You may need this kit if your dryer shows any of the following issues:
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Dryer runs but does not heat
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Dryer shuts off mid-cycle or won’t restart
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Dryer blows thermal fuses repeatedly
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Burning smell or overheating near the heating element
🔧 Compatible Model List
Fits a wide variety of Whirlpool, Kenmore, Maytag, Amana, Crosley, Roper, and Estate dryers.
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:
3977456, 3399848, 3399849, 3399693, 3977393, 3977767, 279769, WP3977456VP, AP6009189, PS334191
🧩 Compatibility Notes
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Check your dryer’s model number (inside the door frame or on the back panel) to confirm compatibility.
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This kit is typically mounted on the heater housing — replace both included components simultaneously for best results.
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Regularly clean the lint screen and exhaust vent to prevent restricted airflow, which is the most common cause of blown fuses and overheating.
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Works perfectly with related parts WP3976570 (High-Limit Thermostat) and WP3976580 (Internal-Bias Thermostat).