WP3977767 - Whirlpool Dryer Thermostat

This Whirlpool Dryer Thermostat (WP3977767) is an essential component for your Whirlpool dryer, designed to regulate heating element input based on the measured air temperature to ensure proper drying heat. Comprising bimetallic strips that actuate switches to control the power flow to the heating elements, this thermostat plays a critical role in maintaining optimized air temperatures for drying efficiency. Also known as the "High Limit Thermostat" and "Hi-Limit Thermostat," this part includes a thermal fuse to provide overheat cutoffs, preventing your dryer from overheating. If you're experiencing issues such as clothes not drying thoroughly, excessive heat, or the dryer not heating at all, it may be time to check the thermostat. Testing for continuity with a multimeter at room temperature can indicate if a replacement is needed. Specifically, this thermostat is situated beneath the dryer vent at the back of the appliance and features a terminal extension arm that connects to the heater element terminal. It's made of metal and plastic and comes in silver/black. Before purchasing, check your device's model number for compatibility.