Question about Sharp R-1874 Convection/Microwave Oven

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Sharp microwave oven model r-1850

On light on display, fuss is good

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Are you saying it's dead, with no display and no inside light when you open the door? And the fuse is good?

If so, you may have a bad magnetron temperature fuse. This device looks similar to the attached photo and is located near where the magnetron mounts.

You can usually find exploded views entering your model number at the Sears parts site.

The best place to order Sharp parts is Tritronics.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

At our site, we have a video showing how to remove a typical over the range control panel assembly in under 5 minutes.

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

Posted on Nov 01, 2008

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Show hight voltage shema capacitor sharp 1850 sharp carousel


Not sure exactly what you're asking but the service manual for the R-1850 is available online here and you can order part here or here.

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

Jan 22, 2011 | Sharp R-1850A Convection/Microwave Oven

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Model r1200 sharp microwave display does not lite, have replaced twice and other people who have purchased have the same problem. Does the new version 2 color display replace my display


Sharp microwave is a very good unit. If you have done same repair twice before, i suggest replace board complete with display next time as there could very possibly be a set of defective components on the old board that is causing this display problem. Have done this repair before and noted how thin the tracks are also. Honestly go for new board if you can.

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The Display is Dim. Hard to read the numbers.


I have the same model and problem. The time display is totally unreadable. Looking for a solution as well. I suspect given the cost (I believe around $60), it's time for a new one. Anyone have any suggestions or easy repair ideas?

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We have installation instructions on our site that cover several past Sharp models and may be close enough to yours to help you.

Normally you take the grille off then remove the two screws that would then be revealed. Then unplug it and slide it forward.

But you should check the link - it should help.

What problem are you having with it?

If you have trouble with the control panel, we regularly repair these 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.

Aug 27, 2008 | Sharp R-1874 Convection/Microwave Oven

1 Answer

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The most likely sources of the funny sound would be the high-voltage diode, transformer or the magnetron.

 

It's possible that the high-voltage capacitor shorted and blew the fuse.

 

It will take some troubleshooting.

 

At our site, we have critical safety information, and disassembly information.

 

See our listing here on FixYa: http://tinyurl.com/yzjozk

Oct 20, 2007 | Sharp R-1850A Convection/Microwave Oven

1 Answer

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There is a fuse located behind the control panel.

 

If that is good, or replacing it does not fix it, you may have a problem with the control panel, which we repair nationwide for $39.95.

 

We have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

 

You can find helpful exploded view diagrams and order parts by entering your model number here: http://tinyurl.com/gv383

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