Question about Sharp R-1481B Microwave Oven

3 Answers

Hood lights lights underneath will not work .(is there a fuse or relay)?

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  • Anonymous Nov 02, 2007

    underneath light will not work

  • Anonymous May 12, 2008

    My two lights don't work anymore too but I never changed the light so
    it mustn't be the reson of not unplugging it. I took it apart and no
    power is going to the lights. can you twell me what piece to chang on
    the board? thanks

  • Cindy Garcia
    Cindy Garcia May 11, 2010

    We have a Whirlpool Microwave (July 1999) Model # MH713OXEQ.



    The lights that illuminate the stove top below are not operating properly. The low intensity works, but not the high.



    I have read on this site that it could be the controller is damaged.



    Is this something that I can repair myself by ordering the part, or should I schedule an appointment with a qualified service technician?



    Thanks,

    Cindy Garcia

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  • Sharp Master
  • 9,098 Answers

This is a problem with the control board, which we commonly repair for $32.50. This is caused by not disconnecting the microwave from the power line when removing or installing a bulb.

Posted on Sep 20, 2006

  • William Miller
    William Miller Nov 26, 2007

    .

    I wanted to update this reply for newesr visitors.



    We see this a lot. The problem is almost certainly on the control panel, which we regularly repair nationwide for $39.95 postpaid.



    This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.



    This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.



    Details of our service and critical safety information and disassembly information is at our site, linked here on Fixya:
    http://tinyurl.com/yzjozk



    We appreciate your thoughtful rating of our answer!

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  • Expert
  • 215 Answers

Could it be a blown bulb? If the oven still works then it's a simple bulb replacement. Once again the cover will have to be removed with the power unplugged. BMW

Posted on May 30, 2006

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  • Master
  • 3,130 Answers

Is it just the light dosent work or is the whole unit dead and not working. If the whole unitd dead yes therfe is a generally a 20 amp ceramic type fuse inside the unit but your gonna need to take the unit down from over the stove and take off the top cover and it should be someware near where the power cord is comming into the unit. Make sure you unplug the unit first and replace the fuse with the right one. If it blows again then you got a problem with The Diode,capacitor,magnatron,power transformer, control board, or even the door switches. Good Luck

Posted on May 30, 2006

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We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid in about a week.

At our Web site, you can get details of our service, plus we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

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Be sure to also do any needed circuit board repair with 30AWG wire to prevent it from doing worse damage if another bulb shorts.

Feel free to contact me directly (and please remind me of your full model number) for more information & help.

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

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http://www.microwavedisplay.com

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At our site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

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I would say a cooktop lamp got shorted by the moisture.

Assuming your circuit breaker is good, the main problem would probably be a blown 15A or 20A ceramic fuse inside the unit.

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If you or someone you know decide to work on it, 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

If and when you remove or install cooktop lamps, the power to the oven must be unplugged or turned off at the breaker.

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