Question about Sharp Microwave Ovens

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My Sharp R-240D microwave is flashing 88:88 on the clock. None of the buttons work. How do I get the touch panel to work?

It's not a US model. It's made for NZ & AU. I took the motherboard out & cleaned it with electrical contact cleaner. After putting it back together it still won't work. The light inside works when the door is open. But none of the buttons are responding.

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  • Sharp Master
  • 9,098 Answers

I'm not finding that as a valid US model.

I would suggest checking the label again.

Feel free to contact me directly for more help.

- William E. Miller, AS-EET
pupista@gmail.com
http://www.microwavecontrol.com
Microwave Oven Control Panel Repair Nationwide
"Recycling by repairing since 1982"

Posted on May 07, 2017

  • Chrissy Watkins
    Chrissy Watkins May 13, 2017

    I live in New Zealand. It has a NZ wall power plug. It's not a US model. I brought it secondhand. It's an older model.

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The service manual is at our site here.

In most cases, disassembly and cleaning is all that's required.

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If you would like to have us do this repair for you, we do that for $39.95 nationwide.

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

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My microwave won't turn on


I would try another rest buy unplugging ti for a couple of minute,s then plugging it back in.

If it still fails, the keypad may be failing.

Sometimes this is due to direct spraying of cleaner on the controls, or steam or grease.

In models like this, disassembly and cleaning is required.

We can do that for you if you like.

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

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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.

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

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