Mmv4250ba Parts

This fixed thermostat senses temperature and opens or closes the electrical circuit to control heating. It replaces a failed temperature-sensing switch to restore proper heating control and safety. What it does:

• Monitors appliance temperature and interrupts power when the set limit is reached
• Prevents overheating by opening the circuit at high temperatures
• Restores normal heating control when a failed thermostat causes no heat or continuous heating
• Works as a safety/limit device in the appliance's heating system

• Disconnect power to the appliance before starting any repair
• Handle the thermostat and sensing element gently; avoid bending or stressing terminals
• Refer to the appliance service manual or OEM instructions for proper placement and mounting

The Fixed thermostat is an OEM component specifically designed for Whirlpool microwaves. This part plays an important role in regulating the internal cavity temperature during the cooking cycle. 

Symptoms of a bad Thermost-Fix include:

• Food not heating evenly or completely
• Portions of food becoming overcooked while others remain cold
• Inconsistent or improper cooking at set power levels  

Causes of a bad Thermost-Fix can include failure or damage of internal thermostatic components or sensors, electrical issues preventing proper communication, or obstructions interfering with temperature monitoring.  

This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore models.