Question about Microwave Ovens

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There's a problem with a door switch or door switch mount.

All three switches should be replaced in this case.

If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa:

We might even have the service manual if you can reply back with your full model number.

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

William E. Miller, AS-EET

Posted on May 02, 2008


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017


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Micowave blows the fuse when turned on

The transformer that makes hi voltage for the Magnetron tube is causing the fuse to blow. This may be a bad Magnetron tube or a shorted winding in the transformer. Price for the repair may be too close to the price for a new oven, so check with a repair center before deciding to replace it.

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Sharp microwave model R7704 replace the fuse came on start humming and went out again what could the problem be

Robert, you have a short somewhere in the electrical system and that is why it keeps blowing the fuse. Many times, I have found that one of the micro-switches connected to the door opening are the culprit to the short. You would need access to a multi-meter that can measure continuity to be able to check them. Some microwaves are more difficult than others to access those micro-switches and you will need to be able to pull the wires off of the switches to get an accurate reading. If you decide to try this yourself, either take a picture of the wiring before you remove any wires or at least write down a good description of the wiring. You might use some masking tape and put a small piece around each wire and number them in sequence and write that down so that you make sure to re-wire the switches properly. Each of the switches are going to be a normally open or normally closed switch and one of them may have a bad internal connection and you may have no reading at all or have the same reading no matter which way the button is pushed. You will have to push the button on the switch to activate the switch to get your reading. A normally open switch will have no reading until you push the button. A normally closed switch should always have a reading until you push the button. If you have no reading or a constant reading or if the button will not push, that switch is going to be your problem. Replace that switch and put everything back together and that should take care of your problem. Hope this helps!

Feb 04, 2015 | Sharp Microwave Ovens

1 Answer

When I set the timer and close the door, the door latches fine. When I push the start button the timer starts to countdown but the microwave doesn't start. If I push the door release in about 1/8 " ,...

If your model number is in the Sharp R-1500 series, then that's a problem with the bottom door switch or its mount.

See these files:

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

Jan 14, 2011 | Sharp R-1511 Microwave Oven

1 Answer

Hi My Sharp R930AW has stopped working the tray does not rotate nor does the micowave come on

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

Microwave Oven Basic Troubleshooting Tips


Sep 15, 2010 | Sharp R930AW Microwave Oven

1 Answer

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The problem I had experienced with the Door not opening easily will be resolved by removing the micowave oven top cover with a tamper proof torx head, replacing the door switch and reinstalling the top cover.

Jan 19, 2010 | Panasonic Microwave Ovens

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The door release button/handle doesn't travel far enough to release the door without pulling on the door


Dec 12, 2009 | Sharp Microwave Ovens

1 Answer

Latch button will not release door on Sharp R-5H84 microwave . Push button and can pull the door open with a slight amount of force.

Sounds like a portion of the release knob is worn or broken, or a metal piece behind it is bent.

Jul 26, 2009 | Microwave Ovens

1 Answer

Door wont open

After unplugging the microwave, I took the side/top panel off by removing the screws on the back*. Inside I found the piece that had broken off the part that pushes the door release. I then glued this piece back on using "Extreme Power" medium advanced performance instant adhesive. I bought this glue in a hobby shop in Richardson, Texas. I waited 12 hours for the glue to set. The door has been opening for the last two days.
*With the cover off, you can open the door by pushing the door release.

Nov 02, 2008 | Panasonic NN-C994S Convection/Microwave...

1 Answer

Sharp Carousel Micowave

One or more door switches is bad, or the switch mount is loose or broken. If you or a friend decide to work on it, 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:

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