The Interlock Switch is an OEM part for Whirlpool microwaves. It monitors the position of the microwave door and signals to the control board whether it is safe to operate.
Causes of a bad interlock switch can include normal wear over time as the switch contacts open and close frequently with door usage. Lubricant breakdown or damage to wires/connectors may also cause failures.
Symptoms of a faulty interlock switch include:
- The microwave running with the door open
- Failure to start the microwave regardless of door position
- Inoperative door or faulty door latching
Replacing with this genuine OEM switch restores an essential safety feature. With accurate door monitoring, microwave energy transmission only occurs when intended.
This OEM Whirlpool part can also be used on Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper, and Kenmore/Sears brand appliances.
Do-It-Yourself Stories from Customers like You
One or more of the Frigidaire microwave door switches had become intermittent. Damon N. • Newnan , GA • January 07, 2021
I replaced the upper and lower interlock switch assemblies.
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