Question about Sharp R-1480 Microwave Oven

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No power Upon turning on our Sharp Microwave, it made a small noise, and everything went off. The display is blank, the light won't come on, and the fan doesn't work. It acts as though it is unplugged. I have checked that the outlet is good, and I removed the front covers, and couldn't find any fuse anywhere. There are a couple of components that I don't recognize, but I don't want to cheat them, as I might do more damage than good. Nothing on the printed circuit board looks burned or hot. It's worked for 10 years, and the display has been getting so dim you can't tell what it says very well.

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  • jkernssr Jul 06, 2008

    Thank you for your input to my microwave problem. Since It sounds as though a capacitor has shorted, and the microwave is 10 years old, I think I'll opt to purchase a new one rather than repairing this one. Again, thank you for you help.



    John



  • jkernssr Jan 03, 2009

    This microwave has been scrapped.!!! No fixes needed now.



    John.



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  • Sharp Master
  • 8,820 Answers

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

We have the full service manual, and I have uploaded it to our site here.

The best place to order Sharp parts is Tritronics at http://www.wehaveparts.com

Once you have it fixed, if you would like for us to replace your display on the control board, we can install a new display tube for $69.95 or a good used one for $54.95 and those totals include return shipping.

Please feel free to contact me directly if you need more help.

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

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Posted on Jul 06, 2008

  • William Miller
    William Miller Jul 06, 2008


    I think you've probably made a good choice in this case. Take care.

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