Question about Sharp Microwave Ovens

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Sharp model R-4A54

Purchased 06/20/04. While operating there was a loud snap and then the unit went totally dead. No clock, no light inside, nothing. Outlet power OK.

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Chances are your high voltage diode blew or the high voltage capacitor shorted, and your fuse is out too.

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.

You can probably find exploded views and order parts by entering your model number here at the Sears parts site. The best place to order Sharp parts is Tritronics.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

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

Posted on Jul 28, 2008


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Posted on Jan 02, 2017


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