SOURCE: daewoo mt1510w over range micowave
When it cuts off, does it act like someone just hit the stop button or do you actually have to reset the clock as if it got unplugged?
If it's the first one, then it's probably a bad door switch or door switch mount, or possibly a bad connection on the circuit board or a failing circuit board relay.
If you wiggle the door up and down and in and out very slightly, does it fail? If so, this is more eveidence pointing to the door switch or door switch mounts.
If it actually resets so you have to set the clock again, then you are losing power somewhere. This could be caused by a bad connection at the fuse holder, at the magnetron or other thermostat / thermal cutout, or on the circuit board.
If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk
Please write back with more details if you need further help.
We appreciate your thoughtful rating of our answer.
SOURCE: GE Over range microwave, JVM1660
Was it the magnetron. Ours just gave up the ghost(heat) yesterday.
SOURCE: Kenmore Microwave Hood Combination: over the stove Model #721.80602500
Disclaimer: I'm a DIYer, not a technician.
Our GE over-the-range microwave stopped producing heat yesterday while warming part of the T-giving feast. Everything else (fan, control panel, light) works fine.
After disassembly and testing last night, I discovered a defective "secondary door switch." Your Kenmore uses a similar switch (~$19 on-line), and that might be the problem. But it also could be other things, such as a bad thermal cut-out.
If you know anyone who's handy with a multimeter, most of the basic diagnostics seem to be pretty straightforward.
SOURCE: Everything works but no heating?
With inside light and turntable on, louder sound, and no heat, this is usually a shorted high voltage rectifier diode or a bad magnetron.
Here are some links you or someone you know can use for test help, but read their safety warnings first:
http://www.gallawa.com/microtech/diode.html
http://www.gallawa.com/microtech/mag_test.html
You can usually find helpful exploded view diagrams and order parts by entering your full model number here.
There
should also be a "mini-manual" hidden inside the unit behind the
control panel or hidden on the left side behind the grille, which is
very helpful when troubleshooting & testing.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
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