Question about Microwave Ovens

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The Microwave activates but won't heat my food, what is wrong with it? I have a Sharp convection micowave oven R-1831.  The convection seems to work properly,  but the microwave will not heat the food.  What is wrong with the microwave?

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  • Contributor
  • 26 Answers

6 Suggested Answers

ghost4548
  • 776 Answers

SOURCE: GE COMBINATION MICROWAVE CONVECTION OVEN JVM1790BK CONVECTION OVEN DOES NOT GET HOT

change the tube/heating element

Posted on May 26, 2009

najah
  • 180 Answers

SOURCE: sharp R-1871 microwave/convection oven. Microwave will not work

This may be due to the microwave section not working. Check the high voltage diode if it is ok, replace the Magneton.

Posted on May 30, 2009

pgh_pa_guy
  • 2992 Answers

SOURCE: Sharp 930 AK Convection/Microwave Oven

When you close the oven door the latches operate a couple of interlock switches that control power. It may be that one of the door switches is bad or out of adjustment. It's also possible that one of the door latches is broken so it's not hitting the switch. There should be two door latches. Are they both there? This oven could be fixed by adjusting or replacing the interlock parts as needed. Because of concerns about microwave leakage from an improper door seal, you should have this oven serviced by a professional.

Posted on Jun 04, 2009

MicrowaveSvc
  • 9047 Answers

SOURCE: I need a manual for Sharp Microwave/ Convection R7A85

You can download that here free.

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

Posted on Aug 30, 2009

  • 8404 Answers

SOURCE: microwave sparked out now it does not work

You had something metal inside the microwave. Do you have a rack inside on a revolving tray? On my microwave, if the foot of the wire rack is not on the revolving tray, it will spark against the floor of the oven. Microwave will go around round pieces of metal - it will spark if it finds a flat surface. I dont think you did any damage to your machine but try to not do this again.

I hope this helps you.

Posted on Sep 09, 2009

6ya6ya
  • 2 Answers

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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I have a sharp over the range convection microwave modelr-1874F The convection works but the microwave sounds like it working, the turntable turns but it does not heat the food we tried unplugging it for...


Every time the microwave part of an oven do not heat it normaly means a faulty MAGNETRON (the device that produces microwves) unfortunately if it's the magnetron they are allmost as expensive as the oven it self, you could allways check for a burned fuse, (allways be prudent opening an applyance)

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Oct 07, 2009 | Sharp R-1870 Convection/Microwave Oven

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Sharp R-963 900 Watts Convection / Microwave Oven does not heat


This isn't exactly a solution but information that might help other Sharp product owners.
I acquired a Sharp Combi Microwave oven - an expensive looking stainless steel piece of equipment. All works except the LCD screen. It seems that others have this problem too. I am not sure of the guarantee BUT In the UK I phoned the Trading Standards Officer and his info is very interesting indeed:
Apart from the normal guarantees, any equipment sold should have a normal useful life of 6 YEARS! Therefore if the item has a 'generic or 'inherent' fault the cmpany should repair or replace the item up to the 6 year period.
This was news to me!
Why should companies sell expensive stuff when the is something just waiting to go wrong? They just shrug their shoulders and say it is out of guarantee! In the UK, at least, that is not quite the end of story.
So I intend to chase up Sharp and see what they have to say about the fault on mine.
Ralfwil

Apr 06, 2009 | Sharp R-963 Convection/Microwave Oven

3 Answers

Convection oven problem


Most of the time the magnetron is defective if the food is not heating up.
In some cases there is a defective low power transformer or other componenents associated with the magnetron.
I would suggest to check the owners manual under the warranty section. Sometimes the magnetron has 5 years warranty.
Good Luck.

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