The Whirlpool 279973 kit combines a high-limit thermostat and thermal fuse used in the heater safety circuit of compatible electric dryers.
The thermal fuse is rated at approximately 352°F, while the companion thermostat is identified as L146.1-44.4°C. Both components should be tested when diagnosing a no-heat or overheating-related safety failure.
A blown thermal fuse is a safety event, not simply a routine wear item. Restricted venting, poor airflow, blocked lint paths, or another overheating cause should be corrected before returning the dryer to service.
Compatibility Note: 279973 fits select Whirlpool-built dryers. Verify the complete dryer model and heater/safety circuit before ordering.
Important Safety Note: Disconnect dryer electrical power before service. Never bypass a thermal fuse or high-limit thermostat, and correct any airflow or overheating condition that caused the original safety device to open.
Installation Note: Mount both replacement components in their specified locations, transfer wiring to the correct terminals, and inspect the lint path and exhaust vent before restoring dryer operation.