The Thermostat is an OEM part for Frigidaire dishwashers. It plays a critical role in regulating the temperature of the dishwasher during the wash and rinse cycles, ensuring optimal cleaning and drying performance. Causes of a bad thermostat can include electrical malfunctions, wear and tear over time, or damage due to power surges or water exposure. A faulty thermostat can disrupt the normal operation of the dishwasher, leading to inefficient washing and potential damage to dishes. Symptoms of a bad thermostat include: Dishes not drying properly Dishwasher not heating water correctly Error codes related to temperature issues Dishwasher stopping mid-cycle This OEM replacement is also compatible with Electrolux, Gibson, Kelvinator, and Kenmore models.Part Number 5304525221 (AP6989893) replaces 154642901.