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Sharp Microwave R290HS, touch keys are not working,88:88 error info blinking on the screen

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5 Suggested Answers

MicrowaveSvc
  • 8865 Answers

SOURCE: Microwave touch pad work light doesn't work

We see this a lot. The problem is 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.

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

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

Posted on Dec 31, 2007

MicrowaveSvc
  • 8865 Answers

SOURCE: Sharp Carousel Microwave Convection Oven

The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

If that doesn't work, leave it unplugged for maybe an hour.

Then let us know if the hard reset does not fix it.

You may have a bad keypad.

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

Posted on Sep 16, 2008

MicrowaveSvc
  • 8865 Answers

SOURCE: Sharp microwave smart and easy touch screen display is broken

We regularly repair such control units for customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.

Or can order a modified control unit with our proprietary upgrades for $115-135 (depending on your model), then if you return your defective control unit in repairable, good cosmetic condition, we'll give you a core refund of $30-50 (again, depending on your model).

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.

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

Posted on Jan 09, 2009

  • 36 Answers

SOURCE: SHARP MICROWAVE R-3A37/IS THERE A BYPASS OR RESET BUTTON?

the touch pad is faulty, replace...Phil

Posted on May 19, 2009

  • 1 Answer

SOURCE: Sharp Carousel #R-209 E KA stored for year.

press stop/clear, set the clock to any time.
Now your oven is working, Bingoooo

Posted on Dec 15, 2009

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2 Answers

Sharp microwave 8888 is flashing and I cannot remove


see this steps and fix it. God bless you

Reset the clock. Press "Clock" and the correct time, using the number pads. Press "AM/PM" if applicable, and press "Start" or "Clock" to confirm.

  • 2 Press "Timer On/Off" to reset the timer if nothing on the touch pad will operate. Use the number pads to select a new timed amount, if desired, and press "Timer On/Off" to start. Press again to cancel.
  • 3 Press and hold "Clear/Off" for three seconds if the timer will not function or is blinking when you touch the pads. This will release the "Child Lock" feature. Make a new touch pad selection.
  • 4 Disconnect power to the microwave if following Steps 1 through 3 does not resolve the blinking timer. Wait a few minutes, and then restore power to reset the microwave.

  • However if the problem persist the display board
    main control board is faulty


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    Oct 02, 2012 | Sharp Microwave Ovens

    1 Answer

    Touch screen panel not working. in past unplugged and then plugged in again and it worked but now nothing


    If you mean the display (the microwave works but no info on display) look here for a good diy thread:
    http://nzlamb.wordpress.com/2010/04/10/sharp-carousel-microwave-lcd-repair/

    Aug 12, 2011 | Sharp R-1750 Microwave Oven

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    Key pad not responding SHARP R-9H11


    Without being able to put my meter on it. My first guess is that you have a bad board. I would say a high limit but it either works or don't work. It does not come and go. There is not a lot to a microwave. You have door switch's, Mag tub, fuse, fan, transformer, diodes, belt, high limit, pc board and a touch pad. This sounds like a pc board to me. Honestly, if it's not a fuse. Unless it's a high dollar built-in unit, they are not Worth fixing. You can buy a new one cheaper. This is why a lot of service company's don't work on them anymore.
    Please rate this solution if helpful.

    Aug 21, 2009 | LG LMVM1935 Convection/Microwave Oven

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    Sharp Carousel #R-209 E KA stored for year.


    press stop/clear, set the clock to any time.
    Now your oven is working, Bingoooo

    Mar 28, 2009 | Microwave Ovens

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    Unable to get the touch bottom to work


    Quite often on the compact models, the solution is to pull the control panel assembly off, remove the circuit board and clean the surfaces shown in the photo with high-grade alcohol.

    That would include the back of the LCD glass and both sides of the rubber strip.

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

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    Jan 04, 2009 | Sharp R-1480 Microwave Oven

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    Microwave suddenly and radomly turns off


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    Nov 06, 2008 | Sharp R-1480 Microwave Oven

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    My microwave sharp 220hw 8oowatt


    After snubbing the darned thing overnight, plug it back it to see if it has recovered. These things do have primitive computers and we all know how reliable those things are- It may just have 'crashed,' just like seemingly all others. 

    Nov 05, 2008 | Sharp R-220HW Microwave Oven

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    Sharp Carousel Microwave Convection Oven


    The first thing I would suggest is a hard reset. Unplug the unit for a minute or so. Then plug it back in, set the clock and try again.

    If that doesn't work, leave it unplugged for maybe an hour.

    Then let us know if the hard reset does not fix it.

    You may have a bad keypad.

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

    Sep 04, 2008 | Sharp Microwave Ovens

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