Question about Sharp R-1870 Convection/Microwave Oven

3 Answers

I have a Sharp Model R-1870 which times for 60 second no matter what you set on it and shuts off

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  • vnazworth Sep 16, 2010

    Th or it does not have is unit does not have any of the features you mentioned. There is no reset button and it does not have a minute or hour button. The timer works ok but when you time a cooking function it only times for 1 minute regardless what time you put in it

  • vnazworth Sep 16, 2010

    I have a Sharp Model R-1870 Microwave/Convecton Oven when I set the time to cook something in the microwave oven, no matter what time you set it only times for 60 sec. Another expert advisor said to reset the unit by pressing the reset button on the control panel. There 1s no reset button on the front panel also he said to pust the minute and second button on the panel, which their is no minute or sec. button

  • vnazworth Sep 16, 2010

    As I stated when you set a timing cycle no matter what time you put in it the unit will come on and work like it aught to for 60 sec. then shut off. the fan and microwave works ok during this 60 sec.there is no error code or unusal noise. Their are no reset buttons or minute or seconds buttons. To set the time you push the number buttons only. The kitchen timer works ok

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3 Answers

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  • Sharp Master
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Hi,
The part you need to replace is the control panel or control unit...this part is not letting you set any time but the 60 seconds...

Click here for the parts list

heatman101

Posted on Sep 17, 2010

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  • Master
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Hi,

Kindly mention few more details :-

1.Do you hear any humming noise or sound?
2. Any error message?

Thanks!!

Posted on Sep 16, 2010

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  • Master
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Hello,

what this timer indicate from your statement is that the program will need to be reset,press on reset button to reset the timing then follow the bellow instruction to solve the problem.


1.Press the "Timer set" button and a timer indicator light will convention. If you allow five minutes to pass while setting the timer, the light will go off and you will have to press "Timer set" again.

2.Choose the "Hour" button to select the number of hours you want to set; push the arrow up until you reach the number of hours desired. Select the "Minute" button and move the arrow up to add minutes or down to subtract minutes. Press the "Start" button to begin the countdown to the amount of time selected.
3.Press the "Timer off" button to make the timer stop. When the time you set has been reached, the timer will let you know with an end-of-time tone. Most Whirlpool models will also give you a timer-finished tone every two minutes thereafter.

thank you and thanks for using fixya.

Posted on Sep 15, 2010

  • Oloyede Monsuru Sep 16, 2010

    hello,

    there is know way that the oven system will have a timer programing,
    once is get to problem like this at the right Conner of the oven from the screen were you will fine reset button,star button and other functional button including numbers carefully check on it to solve the problem with the above instruction.

    thank you once again.

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Posted on Jan 02, 2017

  • 178 Answers

SOURCE: no matter what time i put in it cuts off in 60 seconds on a sharp

This sounds like a bad damper switch or motor. Double check the shut off time....... see if it's actually 59 seconds..
When you unplug the unit from the wall for 2 minutes then plug it bad in, you should be able to faintly hear a motor run for a few seconds. This is the damper motor running. This will verify that the motor is operating.....
Also, check the thermistor.

Posted on Sep 14, 2009

MicrowaveSvc
  • 9047 Answers

SOURCE: My Sharp micro will stay on for 59 seconds and

This is not a problem on the board, it 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.

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.

Posted on Dec 18, 2010

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1 Answer

Sharp microwave r1870 only runs for 59 seconds


If it consistently runs for exactly 59 seconds, and shuts off, it's probably the control panel.

If it runs approximately that length of time, you might have a defective thermal protector on the magnetron, or the magnetron is running too warm for some reason.

Mar 24, 2016 | Sharp R-1870 Convection/Microwave Oven

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I just had an appliance repair man check my Sharp R-1870 microwave for the 59 second shut off problem. He said it was the main circuit board. Has anyone run into this problem. Everything I google says...


I've had a similar problem with a 1983 Sharp Carousel microwave. It turned out to be a faulty door micro switch, the contact didn't stay closed inside it for very long.

Feb 24, 2015 | Sharp R-1870 Convection/Microwave Oven

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My sharp will only run for 59 seconds and then shuts off. It will heat up what ever you are heating but shuts off after 59 secounds no matter how many minutes you program into it.Is there a simple solution...


Yes the timer has the problem, now a day it is built in on microcontroller if your microwave is digital control. The only you can do is send it to nearest service center in your area where they have that parts.
I do hope my advice help you.

Mar 27, 2011 | Sharp R-1870 Convection/Microwave Oven

1 Answer

My Sharp micro will stay on for 59 seconds and shut off no matter how long the timmer is set. Sharp model r 1870 It does this every time it is used . The control board has been replaced.


This is not a problem on the board, it 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.

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.

Dec 17, 2010 | Sharp R-1870 Convection/Microwave Oven

1 Answer

No matter what time i put in it cuts off in 60 seconds on a sharp


This sounds like a bad damper switch or motor. Double check the shut off time....... see if it's actually 59 seconds..
When you unplug the unit from the wall for 2 minutes then plug it bad in, you should be able to faintly hear a motor run for a few seconds. This is the damper motor running. This will verify that the motor is operating.....
Also, check the thermistor.

Sep 08, 2009 | Sharp R-1870 Convection/Microwave Oven

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My sharp microwave convection oven (R-1870) runs for 59 seconds and stops. If I push start it runs for another 59 seconds and stops. How can this be fixedd?

Aug 29, 2009 | Sharp R-1870 Convection/Microwave Oven

1 Answer

Timer shuts off


there was a similar problem posted on your site that solved my problem.

Aug 18, 2009 | Sharp R-1870 Convection/Microwave Oven

1 Answer

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.

Jan 26, 2009 | Sharp R-1480 Microwave Oven

1 Answer

59 Second shut off


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 (on the right side in your model) 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 in 59 seconds.

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 have a partial service manual at our site here.

You can usually find a Sharp exploded view by entering your FULL model number here: http://www.searspartsdirect.com

You can order Sharp parts there or from Tritronics at http://www.wehaveparts.com.

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

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May 26, 2008 | Sharp R-1870 Convection/Microwave Oven

4 Answers

Unit runs for 59 seconds and shuts off


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

The damper is a door located on the right side of the innards. The damper closes and opens depending on cooking mode.

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

You can order Sharp parts from Tritronics at http://www.wehaveparts.com

You can find a helpful exploded view by entering your model number here: http://www3.sears.com

Nov 16, 2007 | Sharp R-1870 Convection/Microwave Oven

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