The two light bulbs that serve as a light and night light have blown on my Kenmore over the range microwave (model #721 62624200). I have the replacemant bulbs from Sears, but when I install them they stay on in the night light settinging and I am unable to put them on high or turn them off. Any idea why this is?
Thank you.
We see this a lot. The problem is almost certainly on the control panel, which we regularly repair nationwide for $39.95 postpaid.
This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.
Details of our service and critical safety information and disassembly information is at our site, linked here on Fixya:
http://tinyurl.com/yzjozk
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I have a problem with the light bulb. It does not stay on when I set the time for heating or cooking. I changed the bulb with no sucsess. Kenmore model 721 serial # 301km02320
On this one, the lights are controlled directly from the mother board. If they can't be shut off then the problem is in the board and will need to be replaced. The control board assembly costs $115.49 and part # is 4781W1M307C. You can get it at http://www3.sears.com/.
The problem is likely on the control panel, which we repair nationwide for $39.95 postpaid.
This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.
This often can affect the exhaust fan operation, too. The lights and fan can be inopoerable or stuck on.
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
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Different model number (721 80593402), same problem. Sears came out for a very high price and said I might as well buy a new microwave by the time they charged me for a replacement motherboard and labor. The microwave was only one year old when the problem began.
where is fuse located on kenmore model 721 microwave
the oven turns on sounds like its working but it does not heat anything
Light doesn't come on?
it stays on when you open the door
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