Question about Sharp R-316FS Microwave Oven

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Jenn-Air Microwave M169B 11 years old.

When I press start the microwave works for a few seconds and turns off. Getting worse by the day. (Yesterday, it would run for 20 seconds, now only 2 or so.) I've reset power at the circuit breaker, checked the door interlocks, etc. Everything appears fine. Ideas? All door latches and sensors seem fine.

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Re: Jenn-Air Microwave M169B 11 years old.

You should be able to get a replacement keypad, and that's not a hard job for a DIYer.

If you're interested, post your correct brand and model and I'll give you a more specific suggestion.

(Your post subject says Jenn-Air M169B put it's posted under Sharp R-316FS so I'm not sure which you have).

If it's a Jenn-Air, you can usually find helpful exploded view diagrams and order parts by entering your full model number here:

You can usually find Sharp exploded views by entering your FULL model number here: (the 3 is correct)

You can order Sharp parts from there or from Tritronics at

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Jan 21, 2008

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A microwave can be dead for many reasons.

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If it's random, it may be a bad connection, usually on the control board or fuse holder.

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You can find helpful exploded view diagrams and order parts by entering your full model number here:

Please write back with more details if you need further help.

We appreciate your thoughtful rating of our answer.

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