Question about Sharp R-1470 Microwave Oven

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Oven stopped working. No lights, no control panel. nothing

How can I tell if there is anything to salvage on my Sharp $1470. It quit working and shows no sign of life??

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  • annsan Dec 21, 2007

    It is none of those things. No life no response. Think it must go.

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  • Sharp Master
  • 9,098 Answers

It should be worth fixing. A microwave can be dead for many reasons.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open. Then when it cools, it closes the circuit and allows power through again.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder.

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.

If the fuse is good, it may be an open thermostat or thermal cutout on or near the magnetron or on top of the cavity / body of the oven.

If you or a friend decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can probably find an exploded view by entering your FULL model number (R-1470) here: http://www3.sears.com (the 3 is correct)
You can order Sharp parts from Tritronics at http://www.wehaveparts.com

Please write back with more details if you need further help.

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

Posted on Dec 17, 2007

  • William Miller
    William Miller Dec 21, 2007

    If you checked all that, you probably need circuit board repair.



    We do these repairs nationwide on a regular basis for $39.95, and parts, if needed, would run $15 more.



    Our link is at our listing here on FixYa: http://tinyurl.com/yzjozk



    Feel free to contact me directly if you'd like us to take care of it for you.



    Thanks.

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