If your Samsung over range microwave will turn on but not microwave, this video may be for you.
Model is SMH1622S.


Yes, this video may be hard to watch and not the best, but should get the point across. Text description on what to do below if you can't watch!

Tools Needed: Phillips Screwdriver and T20 Torx bit.

Parts https://amzn.to/3KkqhDA

If you don't want to watch here is a text description.
UNPLUG UNIT FIRST!
Remove three screws on top panel. Remove two above screen. Slide that panel up, two T20 screws, white piece that holds 3 switches will slide out. Push the release for them to slide out, may have to push button to get them to slide out as well. Replace, reinstall and you should be good to go! You may not have to replace all three switches but why not! if one failed its only a matter of time for the others.

I hope this video helps someone.