Question about Sharp R-202EW Microwave Oven

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Sharp R-4A56 microwave oven dead

The microwave is completely dead, no clock or functions. I am thinking it may be a fuse. Is this likely, and how would I change the fuse? Thank you, Terry

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Re: sharp R-4A56 microwave oven dead

Did you check your circuit breaker to be sure that it wasn't tripped?

Posted on Jul 23, 2007

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Unit is completely dead

please check the fuse - you will be able to locate it on panel. - replace it and the pcs is ok --

Feb 23, 2014 | Samsung SMH9187 Microwave Oven

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follow this next steps, use the VOM, and fix it. God bless you
1. No power to outlet (overload or fault in microwave or other appliance).
2. Blown main fuse - likely due to other problems.
3. Open thermal protector or thermal fuse.
4. Defective controller or its power supply.
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Boiled and egg and killed the microwave. Any way to revive it?

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

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Apr 03, 2010 | Sharp R-320HQ Microwave Oven

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Built-in Sharp Carousel II Microwave Convection Oven died.

There are a couple of safety thermostats in the oven to shut down power if something overheats. One is on the magnetron tube (the microwave source), the other is on the cooking cavity. These sometimes go bad. There's also a power line fuse that may have failed, or become loose in its mounting clips. These can be tested with an ohmmeter; they should all measure very close to zero ohms if they're good.

Another possibility is that the control circuit board in the oven may have failed. I have worked on several Sharp ovens where the power transformer for the board has gone bad for no good reason. If the board goes bad the oven may appear to be dead as well.

Microwave servicing is best left to professionals. If you're thinking of keeping this one, take it to a service shop (or call for home service) and get an estimate. Then decide whether to repair or replace.

Hope this has helped a little. Thanks for using Fixya!

Feb 02, 2010 | Sharp R-1874 Convection/Microwave Oven

1 Answer

Hi, My microwave oven stopped working after I came home from four days of vacation. The digital clock works. What could be the problem? The turn table does not work. Is there any danger opening back of...

if the clock is working then the fuse is fine. if the fuse goes bad the unit would be completly dead. no their is danger removing back panel. as you said make sure the unit is inplugged., however some electrical parts inside hold a charge until discharged.the board could be bad, the door latch or switches could be bad.

Sep 19, 2009 | Sharp Microwave Ovens

1 Answer

Unit dead Unit is dead - suspect blown fuse

Usually, when your microwave oven doesn't work it all, the internal fuse (thermal fuse) is blown. This fuse protects both you and the oven. When it blows, you need to have a qualified appliance repair technician replace it.

The reason for this is that if you do not have any experience and training with microwaves, you can get a SEVERE shock, even if the oven is unplugged. THAT being said, if you still want to know where the fuse is get back to me. good luck.

ALSO, as you may know, a small microwave these days is under fifty bucks at walmart.

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Microwave oven stoped worling

maybee,but no.Most microvaves have that problem over a few years because of the heat stress over the fuse and it starts to ware.You can get it fixed by a handyman or a maytag repair man.But are better off buying one for around 60-110 dollars
glad to help

Dec 11, 2008 | Sharp R-930AK Convection/Microwave Oven

1 Answer

Microwave stopped working

Chances are the thermal cutout (thermal fuse) on the magnetron opened up. It may or may not also indicate a bad magnetron. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa:

Aug 28, 2007 | Sharp R-202EW Microwave Oven

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