Question about Sharp R-1480 Microwave Oven

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Sharp Microwave Oven Corousel

I have replaced the fuse, and swithc on the oven it comes ok. As soon as I enter the time then when I press Start the fuse dead again. I tried using 13Amps fuse it works but humming is coming. I tried using 10 Amps fuse then immediately after pressing the start it goes off and the fuse dead. Please answer me at

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Re: Sharp Microwave Oven Corousel

I replied privately to this, stating it may be the HV capacitor, or possibly the magnetron or transformer and giving links.

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

Posted on Dec 31, 2007

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I have a sharp carousel over the range microwave oven R-1505LK no power the outlet is ok did lose power to the house and the microwave didnt come back on where is the fuse located


The fuse is usually located inside the cover near where the power cord enters...

Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

Microwave Oven Basic Troubleshooting Tips


Nov 16, 2010 | Sharp R-1505 Microwave Oven

1 Answer

Microwave will not work

Even though you don't mention the model number, you posted under Sharp model R-1491, so I'll assume that's it.

You say when trying to work the actual microwave, you get nothing?

We could use a little clarification, but FixYa only gives you one shot at posting a help request.

When you enter the cooking time and press "Start", if the timer counts down and the oven lamp comes on, but the the turntable, cooling fan, and microwave section do not run, then you have a bad secondary interlock (bottom door switch) or its mount is bad.

We have the applicable service manuals for these models and have uploaded it to our site here and here to help you.

Also look at this info on door switch diagnosis and replacement.

Hope this helps.

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

William E. Miller, AS-EET
Microwave Oven Control Panel Repair Nationwide

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Here is where you can download the manual

Yes the problem can be undone also.

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there is a thermal fuse inside that is likely blown.
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I have this model. Press clear then press Auto/Clock. Enter in the time eg 700 then press Auto/Clock again. The time should now be set

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