3977394 Dryer Thermal Fuse

3977394 Dryer Thermal Fuse

Key Features

• Acts as a safety device to shut off the heating element when the dryer overheats.
• Single-use, non-resettable fuse.
• Temperature Rating: 360°F (182°C).
• Two-terminal connection for simple installation.

Replaces / Cross-Reference Part Numbers

• 279548
• 279769
• 3387812
• 3389946
• 3390291
• 3398671
• 695563
• 80001
• AP3094244
• PS334313

Compatibility & Fitment

• Fits a wide range of clothes dryers from major brands, including Whirlpool, Kenmore, Roper, KitchenAid, and Maytag.
• For use in both electric and gas dryer models.

When to Replace

• Dryer fails to heat.
• Dryer will not start.
• Drying times are significantly longer than usual.
• Existing fuse shows no continuity when tested with a multimeter.

Installation Tips

• Always disconnect the dryer from its power source before beginning service.
• Identify and resolve the root cause of overheating (e.g., clogged vent, faulty thermostat) before installing a new fuse to prevent premature failure.
• Use a multimeter to confirm the original fuse is open (no continuity) before replacing.
• Typically found on the heater box or blower housing.