Whirlpool Dryer Thermal fuse WP3399849, Replaces 3399849

Genuine Whirlpool non-resettable dryer thermal fuse, rated approximately 91°C/196°F, with two 1/4-inch terminals. The fuse opens the heating circuit when the dryer overheats.

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✅ Cross Reference Information

Common Symptoms

• Dryer does not start or the motor does not run.
• Dryer may have no heat when the fuse is open in a heating-related circuit.
• Fuse repeatedly opens after replacement because of restricted exhaust airflow, lint buildup, overload, or another overheating condition.

Check Before Replacing

• Disconnect electrical power before accessing or testing the fuse.
• With the dryer unplugged, disconnect the wires from the fuse and test continuity across its two terminals with a multimeter.
• A good fuse should show continuity; an open or no-continuity reading indicates the fuse has opened and requires replacement.
• Do not bypass or jumper the thermal fuse. Before installing a replacement, inspect the lint screen and exhaust path for blockage and confirm that the dryer is not overloaded.
• Use the appliance's model-specific service documentation for access-panel removal and circuit testing; do not infer a fault from a symptom alone.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool OEM thermal fuse.
• Non-resettable, single-use design.
• Approximately 91°C/196°F opening temperature.
• Two 1/4-inch electrical terminals.
• Used in selected Whirlpool-family dryers, including some compact, Thin Twin, and laundry-center designs.

Installation Notes

• Disconnect power before servicing or installing the fuse.
• Access and panel-removal steps vary by dryer model; follow the model-specific Whirlpool service documentation.
• Remove and reconnect the two fuse wires only with power disconnected, preserving their original terminal locations.
• Install the exact WP3399849 replacement and do not substitute a resettable fuse or bypass wire.
• After replacement, verify the dryer operates normally and investigate any recurring overheat condition.

Verified Compatible Models

3LTE5243BN0, 3LTE5243BW0, 11088182890, 11088182891, 11088752793, 11088754792, 11088754793, 11098518410, LER3622DQ1, LER3622DQ2, LER3622DZ1, LER3622DZ2, LER3622HQ0, LER3622HQ1, LER3622PQ0

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.