Model #PLMBZ209GCA FRIGIDAIRE Countertop Microwave

  • Oven/cabinet
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  • Control Panel/door/misc
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  • Wiring Schematic
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Question and Answers


Replacing the primary interlock switch. PLMBZ209GCA Frigidaire Microwave


Thank you for contacting with your question about your Frigidaire microwave. I am so sorry to hear the primary interlock switch has failed. I know what a time saver the microwave is and know you want to get it working again quickly. In this case, I suggest you have repaired by a qualified technician.

We do not give advice on repairing microwave ovens because they are inherently dangerous to service. Microwaves contain high voltage internal components that can retain a lethal electrical charge even when the microwave is unplugged from the outlet. You need special equipment to work on a microwave starting with an anti-static wrist strap grounded to the microwave to even test components in it. Even minor door repairs and adjustments can cause microwave leakage, and a microwave shielding leakage test MUST be performed using a survey meter after any microwave service.

For these safety reasons I strongly recommend having this repair completed by a qualified service technician. You can schedule service online at or by calling 1-800-4-MY-HOME (1-800-469-4663). Here at we love to help you with your repairs, but our expert advice is that microwaves are just too dangerous for a do-it-yourself project.

Thank you for your understanding in this matter and I hope we can help you with your future questions and repairs. Thank you for choosing Sears and using our service.

Read More
Rachel Morgan -
Sears Technician
February 10, 2014

Professional Frigidaire Series Microwave question: can you use a previous trim kit with new micro?

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