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Saw spark through vent (over range model) light works / fan runs, but does not heat food.

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Time to replace it. the condition you describe indicates a fault in the internal structure of the oven.

Posted on Feb 07, 2010

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2 Answers

Why it does not heat food?


You didn't tell us what you were doing when you had trouble, so it's hard to say. Many microwaves will appear to work normally (timer counts down, light comes on, etc.), but they will not come on if the door isn't completely closed. Usually they have a fan that runs while the microwave is cooking, and this won't come on. If the fan is on, but the food isn't getting hot, there's a good chance your microwave is dead. You can try to call a repair service, if it's in warranty, but the cost of repair is often close to the cost of a new unit with microwaves.

Jul 19, 2014 | Whirlpool WMH32517AW 1.7 cu. ft....

1 Answer

Mmv5165bas vent fan will not stop running


Check to see if there's a relay providing power to the fan. If there is, the contacts might be sticking in the closed position. Assuming that this is an over-the-range unit, disconnecting the vent fan completely might not be a good idea as heat/steam from foods cooking on the range would more likely damage the microwave.

Apr 29, 2014 | Microwave Ovens

1 Answer

I have a Galaxy over the range microwave,mod# 721.80002401. The problem is that the vent fan doesn't work. The unit will heat food, the turntable works the under unit lights work, the display is all...


There should be a "mini-manual" hidden inside the unit behind the control panel or hidden behind the grille, which is very helpful when troubleshooting, & testing.

To access & test the hood vent exhaust fan, you'll have to remove the oven from the wall.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

If you've misplaced yours, y
ou can just enter your full model number (721.80002401) at the Sears parts site.

On the resulting page, look to the right for the blue "View manuals" button. Click there.

caab351.jpg

That Sears-related site has many free manuals. While the manuals they list there are all free, they may ask you to register.

Many times, the owner's manual will have the installation instructions inside.

If yours is not listed there for free, you would have to order it through the
Sears parts site.

You can remove the oven from the wall, take off the outer cover, plug the oven in, and run it.

Then you can see if the motor leads are getting the voltage they need to run when turned on.

If your cooktop lights recently blew, the resulting surge can damage the controller.

This can often also affect the exhaust fan, cooling fan, turntable, and/or inside light operation, too.

We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail 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 are at our Web site, along with a video showing how to remove a typical over the range control panel assembly in under 5 minutes.

Feel free to contact me directly with your brand, full model number and symptoms.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

May 28, 2010 | Kenmore 64002 Microwave Oven

2 Answers

Tappan TMV151FS over range microwave starts to work and then dies


Never run the microwave without a load (something to heat)!!! That kills the microwave generating parts.

Sounds like a 'thermal' protect switch is activating after running. Make sure that (if the unit is mounted in a cabinet) that there is sufficient space around the unit for proper air flow and that nothing is blocking the vents. Try setting it on a counter top and heat something. If it works properly and doesn't shut off, the venting space is the problem. You may have to have the cabinet that it sits in redesigned for more clearance.

Aug 19, 2009 | Tappan TMT104E1 Microwave Oven

2 Answers

GE Spacemaker XL1800 hum/buzz noise but heating works


the magnetron needs replacement my friend, although you can still heat up food but eventually it will soon fail.
appreciate your kind comment

Apr 12, 2009 | GE XL1800 1100 Watts Microwave Oven

2 Answers

Over the range Frigidaire Microwave not heating. Model FMT148


This is a sure sign that the MAGNATRON needs replaced (this is what heats up the food) if every thing else works but food not cooking! 99% of time it is the magnatron!
Please rate answer!
THANK YOU!

Jan 12, 2009 | Microwave Ovens

2 Answers

GE JVM1870SF02 - not heating up anything!!


I had the same problem with mine, and discovered, somehow, that when I manually turned on the "vent fan", the microwave worked fine. A bit of a pain, but it heated up the food when it hadn't been prior to the vent fan being on. Can't understand why it solved it, but it's been working like that for about a year now. When I forget to turn on the vent fan though, the food is just as cold as when I put it in.

Jul 28, 2008 | GE XL1800 1100 Watts Microwave Oven

1 Answer

Maytag microwave mmv1153aaw


my guess would be the wave cover. sometimes they smoke and makes sparking sounds. does it still heat food?...if it does, then its not the magnetron.

Feb 18, 2008 | Maytag MMV4205 Microwave Oven

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