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We bought a sharp R-403 TSC microwave 2 months ago. While using it by mistake I hit the wrong buttons and ever since the microwave keeps running when the door is closed but won't heat any food. To

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6ya6ya
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Posted on Jan 02, 2017

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MicrowaveSvc
  • 9047 Answers

SOURCE: Microwave does not heat food placed in the center of the turntable. Leaves a cold spot in the middle of the food.

This is normal. That's why I always recommend to my customers that the food be placed slightly off-center on the turntable. An analogy I refer to is stirring paint: If you stir paint with a stick by simply rotating the stick in the center of the can, it's far less effective than pulling the stick around an imaginary circle halfway bewteen the center and the edge.

Posted on Sep 15, 2006

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MicrowaveSvc
  • 9047 Answers

SOURCE: My Sharp R-248h 800w microwave is not heating up any food items.

That sounds like it would be a 220V 50Hz model. I would assume you're using it with the correct power source or if needed, the right power transformer and/or adapters. I'm curious how you solved the touchpad control problem? When troubleshooting, I always first check an area that was worked on before if I know about it. That being said, the most common causes of the problem you describe are: - defective door switch (probably the upper one) - defective door switch mount - loose and tarnished connection at the FA terminal of the magnetron (disconnect, tighten, burnish, and reinstall) If you have sufficient experience and/or information, you can do it yourself, but I a microwave uses and produces voltages that can be instantly lethal. These areas can be safely checked if the oven is disconnected from the wall and the high voltage capacitor is properly discharged. Information on discharging the capacitor and testing these parts is available from various sources on the Web. Door switches can be obtained from a local appliance parts store. Good luck and be safe.

Posted on Nov 13, 2006

SOURCE: Fans continues to run.

door switches or control circuit, may be loose contact or open check all wiring and circuit...

Posted on Dec 18, 2007

SOURCE: Glass plate turntable won't spin any more

If you are a handyman or good with tools, its a do it yourself job. But first open it up and check if teh belt has snapped or just slipped off. The belt will just cost you a few bucks.

Posted on Jan 11, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Plate does not rotate freely and make noice

The turntable system consists of the motor, the coupler, the turntable support with rollers, and the tray.

You can see and hear a video of how a turntable motor should sound when you rotate it by hand.

If yours is not set to be off via the control panel, and it won't rotate or it sounds like it's grinding, etc., you may have a bad motor or plastic coupler.

To replace either, you need to unplug power, then remove the bottom cover of the oven.

There should also be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

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

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

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

Posted on Nov 27, 2008

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1 Answer

Want to know if this is dangerous and can be fixed or should I buy another microwave.


Sounds like the magnetron is going out. If it was me I would scrap it and get a new one.

Jul 22, 2015 | Electrolux Microwave Ovens

1 Answer

My microwave stop working the clock and timer works but food is still cold. (The round cardboard piece on it's ceiling fell off about 3 months ago.)


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

Microwave Oven Basic Troubleshooting Tips

heatman101

Sep 09, 2010 | Sharp R-1480 Microwave Oven

1 Answer

2 months old. bought brand new. and just stopped


These things will happen. You are aware that these appliances have a 12 month warranty so return it to where you purchased it from.

Feb 17, 2010 | Microwave Ovens

1 Answer

Model 63259 bought about 2 months ago. I went to


you can check and see if there is a fuse on the microwave, if not it may have just burned out, its probably still under warranty so try to take it back for a replacement

Jan 14, 2010 | Kenmore 63252 Microwave Oven

1 Answer

Tricky touch pad on Sharp R530 es microwave oven


There are two options here:

1. Order a new control panel frame which has the keypad, trim piece and door button already installed and swap your control boards into it.

The original part number FPNLCB346MRK0 has been replaced by part # FPNLCB346MRK0B and it runs $58.28 plus shipping.

2. Disassemble your control panel frame, peel off the old keypad and stick a new one on.

Even though the keypad alone runs only $35.66, this job takes a lot of time and labor.

If you (or someone you know) might want to replace just the keypad yourself, I have uploaded a handy guide with pictures showing you what's typically involved.

Whichever option you choose, we have the service manual for this model and have uploaded it to our site here to help you.

You will need the
free Acrobat Reader to view or print it in case you don't have it already.

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

Jan 18, 2009 | Sharp R-530ES Microwave Oven

1 Answer

Microwave fuses


Just replace the fuse Brother. No harm done. BUT, keep it away from your wife. Maybe she's thinking doubling the voltage would make it twice as fast. NOPE!!!

May 02, 2017 | Sharp R-930AK Convection/Microwave Oven

1 Answer

Sharp microwave


One of your door switches are bad.

Mar 18, 2008 | Sharp R-1480 Microwave Oven

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