Question about Sharp R-930AK Convection/Microwave Oven

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Stops after 99 seconds

Sharp R-957M stops after 99 seconds in all modes of operation.

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  • Master
  • 4,090 Answers

Often this type of behaviour is due to a blocked airflow. Has this unit been pushed back too close to the wall or in a hutch? If so remove it or bring it further forward so that there is a better aiflow around the unit.
Check that the air flow vents are not cloged with dirt or covered in some way.

If that does not alter the matter then start to consider a faulty thermostat.

Thanks for using FIXYA

Posted on Feb 02, 2010

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  • Sharp Master
  • 12,061 Answers

In all likelihood the mangnetron has failed, or perhaps even something in the Power Supply and it is shutting down for safety reasons. You need to have it serviced by a reputable service centre/man. Ensure you get a firm "Quote" before proceeding, and remember these days the cost of repair can equal or exceed the price of a new one.

Posted on Feb 02, 2010

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Posted on Jan 02, 2017

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This is a problem in one of the damper-related components, either the switch or motor or the damper door may be binding.

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 drawing for a typical damper assembly.

I'm not sure this is a US model or if parts are still available, so look up Sharp in your country.

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

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Sharp r96st stops at 1 sec and halts whilst preheating oven


This is a problem in one of the damper-related components, either the switch or motor or the damper door may be binding.

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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Sharp model R-1870 Carosel quits cooking at 59 seconds


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.

Sharp models stop after 59 seconds.

See the attached sample photo for a typical damper assembly.

We have the applicable service manuals for these models and have uploaded it to our site here and here to help you. You will need the free Adobe Reader to view or print it.

If a switch is all you need, we offer a universal type for only $5 postpaid which you can order here.

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

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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.

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1 Answer

Our sharp 957 will now only microwave for 59 seconds then stops and rattles for thirty seconds. The convection option stopped working ages ago. Any ideas please?


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.

This is also likely why your convection mode stopped working.

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.

Sharp models stop after 59 seconds.

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.

0926a02.jpg

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1 Answer

Sharp Microwave oven R-96STM Problem started after powercut. Whatever duration timer is set for, power always stops after 59secends. After pressing START button again, oven runs for a further...


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.

Sharp models stop after 59 seconds.

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.

ecffbaf.jpg

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1 Answer

R957 cooks for 59 seconds then stops ,resumes for 59 seconds if cook /start pressed all cooking modes affected kitchen timer works ok


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.

Sharp models stop after 59 seconds.

See the attached sample photo for a typical damper assembly.

You can probably find exploded views and order parts by entering your model number here at the Sears parts site. The best place to order Sharp parts is Tritronics.

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

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1 Answer

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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.

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