Question about Sharp R-963 Convection/Microwave Oven

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Sharp Covection Oven/Microwave stops after 1min on any setting

My 3 year old Sharp R957 Combi Microwave/Covection oven/Grill, stops after exactly 1 min on any setting or mode when using Grill, Oven, or microwave. You just press start for it to restart and then after another minute it stops again. No sign of any burnt out parts or circuits inside; heat coming from whatever mode in use for the minute it runs and microwave works fine and heats stuff for one minute. Any Ideas and is it likely to be expensive?
Thanks in advance.

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  • reesm Aug 16, 2008

    I also have this problem with a Sharp R-957 microwave. It will only run for 59 seconds and then stops, regardless of which power or time settings you enter. It cooks ok for those 59 seconds and will reset and start each time, but it always stops after 59 seconds. There are no apparent or obvious defects when looking inside the cover.The microwave is approximately 3 years old.

  • Anonymous Jan 02, 2009

    I had the same problem. After 59 sec the timer stops no matter in what mode the unit is. I disassembled the unit and found that the motor of the damper panel was not running although it was powered.

    Taking the motor out and carefully disassembled this part (be careful it is inside like a watch) After jogging the gear wheels gently it became free again. Reassembled all the parts again. The unit is working fine again thanks to the tips on this forum.



    Andre Peeters, Belgium

  • Anonymous Mar 12, 2014

    Can I fry/grill and roast in the Covection oven

  • Anonymous Mar 25, 2014

    grill is working,but microwave not heating anything ?

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  • 8,968 Answers

This 59-second stop failure is due to a problem in one of the damper-related components, most likely the switch, but it may also be the motor or the damper door.

The damper is a door inside that opens or closes depending on cooking mode. If the controller thinks that the door is not in the right position, it will shut down the cook cycle.

See the attached sample photo.

If you or someone you know wants to look into this, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

We even have a video on our site that shows you how to safely & easily remove the control panel assembly to send it for service.

We're happy to help and we appreciate your thoughtful rating of our answer.

Sharp Covection Oven/Microwave stops after 1min on - db711c4.jpg

Posted on May 09, 2008

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This is a problem in one of the damper-related components, most likely the switch, but it may also be the motor or the damper door.

The damper is a door inside that opens or closes depending on cooking mode. If the controller senses that the door is not in the right position, it will shut down the cook cycle.

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See the attached sample photo for a typical damper assembly.

Info on ordering Sharp UK parts / spares is here.

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

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