High Limit Dryer Thermostat Kit NA 3977767Part No. NA N3977767
The high limit thermostat is a safety that protects the dryer against overheating. The high limit thermostat stops the flow of electricity when the limit temperature is exceeded protecting against potential fires.
Part location on dryer:
Dryer high limit is located on the heater housing.
When this thermostat fails it causes the dryer to run, but not heat.
If there is no continuity through the thermostat it is bad. Visually inspect element for break. Bring your “thermostat” in for free confirmation that it is good/bad or call the U-FIX-IT store for free assistance with diagnosis.
Replacing NA 3977767 on Whirlpool, Kenmore, Estate, Roper, or KitchenAid models