Question about Sharp R-1870 Convection/Microwave Oven

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The oven stopped working it will not heat, warm or cook. Sharp Model R-1874F

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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

Posted on Sep 10, 2010

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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1 Answer

Sharp R-1510 1000 watts microwave, not heating


Sounds like the inverter (power supply for cooking) or the magnatron which does the work----neither are cheap parts.

Oct 16, 2012 | Sharp R-1510 Microwave Oven

1 Answer

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)

Good luck!

Jan 04, 2011 | Sharp R-1874 Convection/Microwave Oven

1 Answer

Need specs on Sharp R-1874F


You can download an Owner's Manual at managemyhome.com. Just type in the model number that you have provided under the "Manuals" link. and the owner's manual is available in a .pdf (Adobe) format that you can download or print for FREE.

All the specifications for the microwave are listed on Page 29.
I hope you find this helpful.

Oct 21, 2009 | Sharp R-1874 Convection/Microwave Oven

1 Answer

Just moved into a home with a Sharp convection/microwave R-1874F. The hi/lo baking racks are missing, can I purchase these somewhere?


Yes, this is a common item. Any appliance store that handles the Sharp line will be able to order the racks for you, if they do not have them in stock.

May 17, 2009 | Sharp R-1872 Convection/Microwave Oven

2 Answers

Regarding microwave


Sanjay
This is due to the magnatron failing (this is the part of oven that cooks the food!) This is the most likely cause of y isssour oven not heating the food!

Magnatron needs replaced for oven to work again!
Please rate this free soultion!

Jan 18, 2009 | Sharp R-308J Microwave Oven

1 Answer

Sharp R-1874F Low Convection Temp


We have the 2 service manuals you need to refer to for this model and have uploaded them to our site here and here to help you.

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

The manuals have a safety info, disassembly info, troubleshooting chart, test procedures, part numbers, etc.

I would first suspect a bad thermistor, but it should be checked, as well as the line voltage at the outlet, etc.

The best place to order parts for this brand is Encompass (formerly Tritronics). Or you can call them toll-free at 866-779-5835.

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

Jan 08, 2009 | Sharp R-1874 Convection/Microwave Oven

1 Answer

Outside caseing heating up while cooking`


Also, Please reply back with your brand and model number so we can help you.

Nov 20, 2008 | Sharp R-1480 Microwave Oven

1 Answer

No Heat


This is probably due to a bad door switch, most likely the top one. The microwave got hot because the cooling fan was not running. 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: http://tinyurl.com/yzjozk You can find helpful exploded view diagrams and order parts by entering your model number here: http://www3.sears.com/

Apr 26, 2007 | Sharp R-1492 Microwave Oven

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