Question about Frigidaire FMV145K Microwave Oven

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Microwave oven the light comes on the timer counts down but there is no power.. i looked into it earlier on the web and it said it was the door switch... if so how easily can this be fixed or is it worth fixing... the microwave is only 2 yrs old

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  • Anonymous Dec 13, 2008

    Light comes on timer counts down but microwave does not heat up



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Eat me

Posted on Sep 09, 2008

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It may be a door switch, or a failure in the high voltage electronics. Microwave ovens are so cheap these days that they are generally not worth repairing. Do not attempt repair yourself, as there are LETHAL voltages present, even when off & unplugged.

Posted on Jul 16, 2007


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I would replace the door switches and set up the door gap to 1/8" just enough to alow for a little play.
Setting the door square is acheived by slackening the lower door hinge and re tightening it when the door is square.
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The door switches are almost certainly the culprit - probably the upper one. It may also be a loose mount, or even a loose spring in the hook-like devices on the door which activate the switches. There is a center monitor switch whose purpose is to blow open the fuse if the door is open and the upper or lower switch gets activated. That's why the fuse blew when the screwdriver was introduced - you activated the door switch while the monitor switch was on. I've attached a generic picture which gives you the idea. More importantly, at my Web site, I have critical safety information, disassembly tips, and infomration on checking and replacing door switches. You can find these via my link at FixYa here:

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