I have a Sharp Carousel Model R-1440 and it won't stop running after I hit the stop button. I tried unplugging the appliance and it will stop but once I plug it back in, it just runs and runs. The carousal is not moving while microwave is on.
It may be a sticking door switch (upper or lower, not the middle one) or the mount of one of those switches may be loose, broken or out of alignment.
See these files:
http://www.microwavedisplay.com/safety.txt
http://www.microwavedisplay.com/disassembly.txt
http://www.microwavedisplay.com/doorsw.txt
At
our Web site, we have a video available
showing how to remove a typical over the range control panel assembly in under 5
minutes.
Then you can get to the switches.
Or it may be a sticking relay on the control board. We
regularly repair these control units for customers nationwide by
mail for $39.95 postpaid in about a week or so with a one-year
guarantee.
If during this unwanted operation the oven lamp, internal cooling fan, and stirrer are all stuck on, but the turntable is not on moving and the oven is not actually cooking, then I would suspect relay RY1 on the control board is stuck.
That's what I suspect in your case.
SOURCE: Sharp Carousel Model R-1440 won't shut off
Take it immediately to a local Microwave repair shop...looks like one of the circuits may have gone...otherwise switch off from mains
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