Countdown starts and light comes on but no power. Door latch visually OK. Countdown stops when door opened, light stays on, countdown continues as normal when door closed. Finishes normally, light out at end of countdown. Just seems no power to turntable or heater.
SOURCE: microwave seems to turn on when door latch is opened
What's happening is you are activating one door switch a little before the other, and that is causing your light, fan, and turntable to come on. The plastic parts are not perfectly rigid, so they flex a little when you press the button, and that causes the lag to be more apparent. Even if you press the door open faster and look really close, you may notice the light, fan, and turntable coming on for a split second. That's perfectly normal. The relay on the control board must also be turned on before it will actually be cooking.
SOURCE: when I open my microwave door, it starts running
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In most cases, it's not actually cooking, but instead the fan, turtable and light may be on. Yet it does need attention.
What this usually means is that you have a shorted door switch or a bad door switch mount.
It's easy to tell if it's actually cooking, just place a cup of water inside and see if it heats.
If so, that could mean a stuck relay on the control board. If so, we repair these for customers nationwide with our guaranteed $39.95 service. Far less than a new 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're happy to help and we appreciate your thoughtful rating of our answer.
SOURCE: Sharp Carousel Microwave door latch stopped working door won't stay closed
Normally the problem is not the spring, but a broken spring mounting tab on the door latch head (hook) assembly or the inner door panel.
If it's the door panel, it's usually easier and cheaper to use epoxy and some kind of hardware to fashion a new spring mount.
The door latch head (hook) is easy to replace or repair if that's the issue.
We have *critical* safety & disassembly info at our site, linked here: http://tinyurl.com/yzjozk
We also have this full service manual at our site: http://www.microwavedisplay.com/R1480_R1481_R1482_sm.pdf
Normally you have to separate the door panels (as shown in the attached photo) and then you'll see the screws you need to remove.
We're happy to help and we appreciate your thoughtful rating of our answer.
SOURCE: Door shut off malfunction
I have the same problem starting yesterday April 19. Have you gotten any answers.
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