$3 fix for microwave that lights up but no heat, buzzing or spinning
If your microwave is only partially working, in this case it only lights up but doesn't heat, buzz, or spin, then it's probably a door switch. This shows diagnosis, disassembly, selection & testing of replacement door switch. 2019 Update: Here's a pack of 2 of these switches on Amazon for just $8! https://www.amazon.com/gp/product/B07... Just search for SZM-V16-FD-63

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