Question about Sharp R-403HW Microwave Oven

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Sharp R-403HW microwave... control panel START button no workee... was intermittent and now totally not happening... tried hard reset unplug wait replug set clock several times... other buttons okay - MIN+ works... no visual wear or damage like cupping or cracks around button - looks fine... I probably need a control pad (feel free to tell me I don't) and if I need this where do I get one? and what is the part number? Thanks!

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  • Contributor
  • 44 Answers

Replace the KeyPad will fix the problem

Posted on Dec 20, 2017

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Posted on Jan 02, 2017

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Shayna
  • 64 Answers

SOURCE: Sharp R-9H56 Microwave convection oven

Typically in a microwave, you get into programming mode (sounds like the auto/clock button is doing that) set the time and then press START. Give that a try.

Posted on Jun 08, 2007

MicrowaveSvc
  • 9098 Answers

SOURCE: Sharp r-320F digital time display

We see this a lot. The problem is on the control panel, which we regularly repair nationwide for $39.95 postpaid.
We have full details and *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our
listing here on FixYa: http://tinyurl.com/yzjozk

Posted on Nov 22, 2007

MicrowaveSvc
  • 9098 Answers

SOURCE: Model R-316F/touch panel quit working

If you can get a chance, you may be able to get Sharp to cover it with the warranty, depending on when and where it was actually purchased. You can contact Sharp at 1-800-BE-SHARP (1-800-237-4277).

If they won't cover it, we regularly repair these for customers nationwide with our guaranteed $39.95 service.
We have full details, plus *critical* safety, disassembly, and troubleshooting info at our site. You'll find a link to our site in our
listing here on FixYa: http://tinyurl.com/yzjozk

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

Posted on Dec 17, 2007

MicrowaveSvc
  • 9098 Answers

SOURCE: tricky touch pad on Sharp R530 es microwave oven

There are two options here:

1. Order a new control panel frame which has the keypad, trim piece and door button already installed and swap your control boards into it.

The original part number FPNLCB346MRK0 has been replaced by part # FPNLCB346MRK0B and it runs $58.28 plus shipping.

2. Disassemble your control panel frame, peel off the old keypad and stick a new one on.

Even though the keypad alone runs only $35.66, this job takes a lot of time and labor.

If you (or someone you know) might want to replace just the keypad yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

Whichever option you choose, we have the service manual for this model and have uploaded it to our site here to help you.

You will need the
free Acrobat Reader to view or print it in case you don't have it already.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Jan 19, 2009

MicrowaveSvc
  • 9098 Answers

SOURCE: Sharp R-24ST Microwave - Sticking START button

I don't have the service manual for that UK model, but my experience tells me that under the buttons there is either a set of board with mechanical switches or a membrane keypad.

Either way, that membrane or switch board is likely what you'll have to replace.

For generic disassembly help, see:
http://www.microwavedisplay.com/safety.txt
http://www.microwavedisplay.com/disassembly.txt

Info on ordering Sharp UK parts / spares is here.

If you're in another country, you can visit Sharp's world portal here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Feb 09, 2009

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In order, I would suspect:

- it needs a reset
- door switch or door switch mount trouble
- your keypad is failing

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If that doesn't work, leave it unplugged for maybe an hour.

Then let us know if the hard reset does not fix it so I can give you some advice on the other two probable causes.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

Let us know if the hard reset does not fix it.

It may have an intermittently shorting keypad or another problem on the control panel, which we repair for customers nationwide with our guaranteed $39.95 service.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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