Question about Sharp R-930AK Convection/Microwave Oven

1 Answer

Microwave convection heat shuts down

My Sharp R930AK microwave will overheat in the convection mode above selected temperature and then shut down. Any suggestions? Is this a home repair possibility?

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  • Anonymous Mar 17, 2014

    when it pre-heating----it shuts down and locks up----you have to unplug unit to do anything

  • Anonymous Mar 18, 2014

    when unit shuts down---it locks up---------you must unplug it to get it to respond again

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  • Sharp Master
  • 9,098 Answers

That could be several things, but to me the most likely is that your thermistor is caked with grease - somewhat shorted as opposed to open. By contrast, when the thermistor is open, the classic symptom is that the coolling fan runs more than it should. The other most likely possibilities include the damper motor or switch or control panel. You should be able to get any needed parts at Tritronics at http://www.wehaveparts.com You can find critical safety & disassembly info in the serice manual or at our Web site. We have the actual service manual for that model on our site at http://www.microwavedisplay.com/R930AKAW.pdf (if that URL fails try http://207.234.249.73/mwd/R930AKAW.pdf) Post back if you wish.

Posted on Dec 24, 2006

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These items are not expensive
http://www.repairclinic.com/SmartSearch/SSPartDetail.aspx?PartID=757868&PPStack=1
http://www.repairclinic.com/SmartSearch/SSPartDetail.aspx?PartID=757867&PPStack=1
Insert your model ( sharp R930AK ) at search tab of link below and select "thermostat/Thermal fuse " at PART TYPE to see parts availability

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