Whirlpool Thermal Fuse (W10909685)

The Whirlpool Thermal Fuse is a safety cutout used in Whirlpool dryers to stop power to the heating circuit when temperatures rise beyond a set limit. It helps prevent overheating by opening the circuit, which stops heat production and may also interrupt dryer operation depending on the model’s wiring.

Common causes of failure include restricted airflow from lint buildup, a clogged vent, a crushed or overly long exhaust duct, or a failing blower wheel that reduces air movement. High heat settings with poor ventilation can also drive temperatures high enough to trip the fuse. Once the fuse opens, it does not reset and must be replaced.

These symptoms can help you decide if this thermal fuse matches your problem:

• Dryer runs but does not heat
• Dryer stops shortly after starting
• Dryer will not start, even though the door switch and controls seem normal
• Clothes take much longer to dry, followed by loss of heat
• Burning smell or unusually hot cabinet before the failure occurred