WP3387134 - Whirlpool Dryer Thermostat

This Whirlpool Dryer Thermostat (WP3387134) is a genuine part designed for Whirlpool dryers. It plays a critical role in regulating the heating element's input based on the measured air temperature within the dryer, ensuring that your appliance maintains the proper drying heat. This thermostat features bimetallic strips that actuate switches to control power flow to the heating elements and incorporate a thermal fuse for overheat protection. It's also known as the "Dryer Operating Thermostat," "Dryer Cycling Thermostat," or simply "Cycling Thermostat."

By maintaining a temperature of 155 degrees in the dryer drum, with an internal bias heater allowing for a lower heat temperature of approximately 140 degrees when selected, this part ensures optimized air temperatures for your drying needs. The construction of the thermostat consists of both plastic and metal parts, measuring 2 by 1.5 inches, and it is housed adjacent to the blower wheel. Symptoms that may indicate this thermostat needs troubleshooting or replacement include inaccurate temperature regulation within your dryer, leading to either under or over-drying of clothes.

Before purchasing this thermostat, it's important to verify your dryer's model number to ensure compatibility.