Question about Sharp R-930AK Convection/Microwave Oven

4 Answers

No Power My Sharp Convection/Microwave Model R-930AW has no power. It's plugged in, the outlet is hot (tested w/mixer), no display. Was going to nuke some coffee and as i reached to open the door, the display went black.

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  • e.c. potter Jul 05, 2008

    what does this mean? "If you know electrical stuff, get a meter and check the power supply section of the oven." there is a "trap door" in the center bottom of the unit which i took off and found a round 'motor'(?) that is directly under the turntable center post.

  • e.c. potter Jul 05, 2008

    where is the fuse located? how/where do i get a replacement? thankx

  • e.c. potter Jul 05, 2008

    no intermittant about it... it's dead. no display lights.

  • e.c. potter Jul 05, 2008

    i appreciate all the helpful suggestions. since it's dead as a doornail, i'll be packing it to the repair shop... must be a fuse. hope it's not prohibitively expensive. thankx again.

  • Anonymous Mar 25, 2014

    i have power to the outlet but no display at all when plugged in

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4 Answers

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If your microwave oven doesn't seem to work at all, check these:

Fuses
Door switch
Fuses Usually, when your microwave oven doesn't work it all, the internal fuse (thermal fuse) is blown. This fuse protects both you and the oven. When it blows, you need to have a qualified appliance repair technician replace it.

Door switch If the fuse isn't the problem, check the door hooks and the door-release button. When these are broken, the door switch doesn't activate, so the oven can't work.


http://www.repairclinic.com/0088_6_1.asp

Posted on Jul 05, 2008

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It is the fuse im afraid you blown it its fixable

Posted on Jul 03, 2008

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Greetings,

If you know electrical stuff, get a meter and check the power supply section of the oven.

Keep us posted and thank you for using our service.
FixYa for all your troubleshooting needs.

Posted on Jul 03, 2008

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Hi,

Did you try replacin the fuse.It might have blown.

Posted on Jul 03, 2008

  • Priya darshan Jul 03, 2008

    Few more 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, or even an intermittent fuse.

    You
    should do a continuity test the fuse while it's in the holder (with the
    microwave unplugged, of course) then turn the fuse by hand or take it
    out and put it back in, then test it again.
    .
    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.

    I

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Posted on Jan 02, 2017

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