Question about Kenmore 64002 Microwave Oven

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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 normal, etc. When we took the unit down we found an obstruction in the fan blades and cleared it. Still no fan. How do I find out whether it's the fan motor, or a circuit board problem? Thanks for any help.

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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.

I have a Galaxy over the range microwave,mod# - 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

Posted on May 30, 2010

Testimonial: "I did not find a mini-manual,but with your advice I don't get AC voltage at the motor. When I removed the pc board I see a burnt spot on the lower right center inside the area marked "LIVE PART". I think it's toast. I'll see if I can access a new one locally first, but thank you very much."

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