Question about Sharp R-1850A Convection/Microwave Oven

1 Answer

Microwave does not heat food

Sharp R-1850A every thing works but the microwave portion of the oven. Functions work but will not heat up a cup of water.

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  • Sharp Master
  • 9,047 Answers

We have service manuals at our site which will help you:
http://www.microwavedisplay.com/r1850_r1851_sm.pdf
http://www.microwavedisplay.com/r1850a_r1851a_r1852a_sm.pdf

Some questions to ask as you or someone you know checks it out.

When you try to microwave are the inside light, internal cooling fan and turntable all working?

If not, then it may be as simple as a door switch.

If so, then it may be a bad magnetron. It can be tested.

Is there any unusual noise or is it louder or quieter than normal?

A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the mag can be bad without that sound.

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are working.


You can order parts for this from Encompass here or 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.

Posted on May 16, 2010

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Related Questions:

1 Answer

Power is on, timers,etc. work, but heating and interior light do not work.


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

Microwave Oven Basic Troubleshooting Tips

heatman101 ;'

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May 13, 2011 | Sharp R-1850A Convection/Microwave Oven

1 Answer

It suddenly stopped working correctly. It makes a strange noise when operating and doesn't heat food.


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

Microwave Oven Basic Troubleshooting Tips

heatman101

Sep 16, 2010 | Sharp R-1850A Convection/Microwave Oven

1 Answer

Sharp r-1850a everything works but the microwave portion of the oven. Will not heat water.


We have service manuals at our site which will help you:
http://www.microwavedisplay.com/r1850_r1851_sm.pdf
http://www.microwavedisplay.com/r1850a_r1851a_r1852a_sm.pdf

Some questions to ask as you or someone you know checks it out.

When you try to microwave are the inside light, internal cooling fan and turntable all working?

If not, then it may be as simple as a door switch.

If so, then it may be a bad magnetron. It can be tested.

Is there any unusual noise or is it louder or quieter than normal?

A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the mag can be bad without that sound.

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are working.


You can order parts for this from Encompass here or 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.

May 15, 2010 | Sharp R-1850A Convection/Microwave Oven

1 Answer

Microwave not heating up


Check the door switch, when it is faulty the oven will turn on but turntable, fan and magnetron wont operate.

Regarding parts, contact the seller here to purchase parts.

You can also order from MicrowaveSvc , they also provide parts.

Jan 13, 2009 | Sharp R-1850A Convection/Microwave Oven

2 Answers

I hqave a Sharp convection/microwave I bought in 1980. I love it but the microwave has stopped working anyone have any ideas as what to do. Thanks, Vicki


it could be the magnatron or the high voltage fuse, they are the common problems of a microwave not heating. ALWAYS GET A QUALIFIED TECHNICIAN OR SOMEONE WHO KNOWS HOW TO DISCHARGE A HIGHVOLTAGE CAPACITOR BEFORE ANYTHING INSIDE A MICROWAVE IS TOUCHED, ALWAYS UNPLUG FROM WALL ALSO!!!!

Nov 26, 2008 | Sharp R-1850A Convection/Microwave Oven

1 Answer

My Sharp R-340D microwave works perfectly but Does NOT HEAT FOOD


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

Microwave Oven Basic Troubleshooting Tips

heatman101

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