Question about Sharp Microwave Ovens

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Sharp 1400W/R-2397 will start but then stop mid cycle. Not sure of problem.

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Does it stop after 59 seconds?

My solution assumes so, but if not, please reply back with details.

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.

Sharp 1400W/R-2397 will start but - 30e1eae.jpg

Posted on Sep 25, 2008

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1 Answer

My Sharp R-975 Microwave after settin the timer and starting only runs for 59 seconds and stops, I can press start again and it goes for another 59 seconds


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.

Sharp models stop after 59 seconds.

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.

microwavesvc_30.jpg

Mar 13, 2011 | Sharp Microwave Ovens

1 Answer

I Have a sharp microwave model # R1874. On the control panel, when I press the start button, the microwave runs for 59 seconds then stops. I have to press the start button again to have it run again. It...


That would be a problem in the damper assembly, either a bad switch or motor, or the damper door is jammed or blocked. Consult the attached diagram for general reference. The damper switch is the same as the primary interlock (door) switch.

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Its location varies by model, but you'll have to take the outer cover off to find it.

The best place to order Sharp parts is Tritronics or you can call them toll-free at 866-779-5835.

If you only need a switch, you can order a universal type HERE

Also, I quote other similar solution...
I had the same problem. Turned out to be the micro switch and damper motor. I replaced both myself and fixed the problem for less than $40.00. The best advice I got was replace the switch, reconnect the motor and make sure the motor runs through a damper door cycle. It didn't run, even though it showed continuity and had power, so I replaced the motor which solved the problem. The micro switch which is activated by the cam on the damper motor has to be cycled within one minute, or the unit shuts itself off. The damper motor on my model R-1870 is found in the right rear section of the assembly when facing it. You have to remove the unit, and remove the outer casing to get to it. The damper is a simple sheet metal door, activated by the motor, and the switch mounts at the top of the motor and is activated by the same cam that activates the door.


Good luck.

Mar 06, 2011 | Sharp R-1874 Convection/Microwave Oven

1 Answer

Stopped working mid a 2 min set. no lights no clock display,


The most common cause of this type of failure during the cook cycle is the fuse melts causing a dead condition. To replace the fuse the cabinet has to be removed and the fuse replaced with the same type and amperage. Pay attention to the fuse holder to make sure it isn't burnt or corroded causing a poor connection which overheats the fuse.

Jun 21, 2010 | Kenmore 63252 Microwave Oven

1 Answer

The microwave will only work for 59 seconds then it stops. It is working but only for 59 seconds. I am not sure about the convection oven was afraid to try it. The unit is in our fifth wheel RV. I can heat...


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.

Sharp models stop after 59 seconds.

See the attached sample drawing for a typical damper assembly.

We have the applicable service manuals for these models and have uploaded them to our site here and here to help you.

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.

damper.jpgdamper.jpg

Apr 18, 2010 | Sharp R-1870 Convection/Microwave Oven

2 Answers

Sparp R 930 not heating, turntable not turning


I just repaired mine with the same symptoms. I found that the bottom microswitch on the door (there are 3 switches) was faulty. It started as open, when the door closed, the switch closed (good), but when the door was fully closed the switch was open again. I went to Electronic City with the switch in hand, they found me a duplicate that cost me $2.50. BTW - you must take out the door switch assembly, 3 screws plus wires, in order to work on the switch. Also, put the assembly back in so that the door latches close/open the switches correctly. -jk

Jan 14, 2010 | Sharp R-930AK Convection/Microwave Oven

1 Answer

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.

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.

b27054b.jpg

Jan 29, 2009 | Sharp R-1480 Microwave Oven

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

Sep 07, 2008 | Sharp Microwave Ovens

1 Answer

Have a sharp microwave and convection oven combination and it will only run a few seconds and stops hit start will only keep running by hitting start. model # r1870


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.

The best place to order Sharp parts is Tritronics.

If you only need a switch, you can order one from us for $5 postpaid.

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

469b66b.jpg

Aug 26, 2008 | Sharp Microwave Ovens

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