Question about Whirlpool MH6150XMS Microwave Oven
Food placed in microwave will only cook/heat around the edges. The center of the plate will be left cool or cold. Example: Anything (say bacon)you put into the microwave to cook must not be placed within about a 3 inch diameter circle in the center of the rotating plate. All other area of the food will cook but it seems that the microwaves are not being spread over the center of the food being cooked. Thank you.
This is normal. That's why I always recommend to my customers that the food be placed slightly off-center on the turntable. An analogy I refer to is stirring paint: If you stir paint with a stick by simply rotating the stick in the center of the can, it's far less effective than pulling the stick around an imaginary circle halfway bewteen the center and the edge.
Posted on Sep 15, 2006
The magnetron generating the microwaves emits WAVES into the chamber (oven)that bounce around and at the points (nexus) where waves 'collide' the energy is greater, creating the 'hot spots'. The turntable in a domestic oven minimizes this effect, but the food is simply rotated through the hot spots. It could be that all your hot spots are concentrated in the periphery of the turntable, and that's the part that gets the heat. The most common cold spot for a microwave is the center somehow. Another thing I noticed is that concave dishes don't help the food in the center get any heat. try using more flat dishes, and don't put anything thick in the center, since microwaves don't heat from the inside out like generally believed, but only from the outside where the waves hit, and the inside is heated through heat transference, same as in conventional heating. Still, if you feel it's exagerated, you could have it serviced. Good luck
Posted on Jun 12, 2006
you may have gotten a power surge and that can cause some funny things to happen, 1st is there power to the oven, 2nd if so there may be an internal fuse protector built in to the oven, check with the manual for anything of that sort listed. if not you may have to take it in and have it repaired by a pro. there is a lot of voltage in these ovens and unless you know what you are doing a person could get hurt
Posted on Jan 03, 2009
SOURCE: microwave seems to be working
Chances are you have a shorted high voltage rectifier diode or a bad magnetron, but it may be a bad high voltage transformer.
There should be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which isvery helpful when troubleshooting & testing.
At our site, we have a video showing how to remove a typical over the range control panel assembly in under 5 minutes.
You can usually find helpful exploded view diagrams and order parts by entering your full model number here.
Here are some links you or someone you know can use (in order given) for test help, but read the safety warnings first:
http://www.gallawa.com/microtech/diode.html (if it is NOT shorted, it's probably fine)
If you'd rather have a pro take a look, I would recommend that you contact Whirlpool customer service to find your nearest Whirlpool-authorized service center.
Whirlpool customer service is here and you can also enter your model number on that page to download your owner's manual, installation instructions, etc..
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Oct 27, 2008
SOURCE: GH7145XFB-1 not heating properly
Generally, the most common causes of a failure to heat are:
- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose conneciton on the control unit circuit board
- bad magnetron or other high voltage part
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
Posted on Nov 17, 2007
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I always recommend that folks put food off-center on the turntable to assure more even heating.
It's a stirring action, so imagine how inefficient it would be to stir just by twirling a spoon in the center of your coffee!
Also, when you put your food off-center, you're not putting it in the same spot every time. That will help prevent repeated heating of the the same spot on the glass, which can lead to weakness and cracking.
The turntable generally replaces the stirrer, which actually scrambles and stirs the microwaves as they come out of the waveguide from the magnetron. But some models, notably GE's, have both.
So if you're placing the food properly and it's still burning, since it's under warranty, contact Sharp at 1-800-BE-SHARP (1-800-237-4277) to see about getting it checked.
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