Question about Kenmore Microwave Ovens
Model 721.80043700 random touch pad keys work and others don't. do i need to replace the circuit board and touch pad? the ribbon connection to the touchpad smells burnt but no visible charring. the cleaners may have used a spray cleaner to the door and screen. any help would be appreciated.
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
We see this a lot. The problem is 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.
This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.
Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on Jan 20, 2008
It sounds like the keypad is worn out. The fact that you can get them to work sometimes by what direction you push on them, tells me that the contacts are not working correctly.
Did you have this problem prior to the fuse blowing or did it start after you replaced the fuse?
I don't believe the fuse blowing is related to the keypad problem. I also don't believe that you have a microprocessor problem because you say that the function buttons work but the number keys don't work right. If the microprocessor was faulty, it would not be able to read any of the keys.
The fact that the number keys are not working doesn't surprise me. When you go to cook something, you will press the number keys several times, while only pressing start or stop once. This is why your number keys have worn out first. These keys have a limited number of cycles (presses) and it sounds like its time for a new keypad.
Please let me know if I can be of further assistance to you.
Posted on Feb 21, 2008
Same thing happened to us. We just came back from Sears, where we bought another. Just for giggles, my wife suggested unplugging the old one and plugging it back in again. It works now. New one's going back to the store.
Posted on Aug 16, 2008
you must remove the MW take off the cover then look for a large metal can (capacitor) and a white (ceramic) fuse...look and, smell and, you should find the cause
Posted on Apr 22, 2009
F2 on a Whirlpool
microwave means you have a shorted membrane keypad.
If and when an oven is coming on or doing anything by itself, this is very dangerous and can result in a fire.
So until it is repaired, please leave it unplugged or leave the door open when it's not in use, and please do not leave it cooking unattended.
On this model, the membrane keypad is not available as a separate part, so you would have to order the control panel frame assembly which comes with a new keypad.
It's actually a pretty easy do it yourself job.
At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.
Next, disconnect the strip as shown in the photo below, then remove the screws that hold your circuit board in the old frame.
Then carefully (since the display is made of glass) move your circuit board to the new frame, and reassembly is the reverse of disassembly.
The part numbers to order are shown below by color you can get it here.
You can also find helpful exploded view diagrams at that link.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Aug 04, 2009
Tips for a great answer:
Jan 11, 2017 | Microwave Ovens
Oct 03, 2008 | Microwave Ovens
Sep 14, 2016 | Microwave Ovens
May 05, 2014 | GE Spacemaker JVM1640SJ Microwave Oven
Jan 28, 2014 | GE Advantium SCA2000B Microwave Oven
Aug 07, 2011 | GE Spacemaker JVM1740 Microwave Oven
Jan 09, 2011 | Microwave Ovens
Dec 23, 2009 | Magic Chef CMV1000B Microwave Oven
May 21, 2009 | KitchenAid KHHS179LSS Convection /...
Mar 15, 2009 | GE Profile Spacemaker Over-the-Range...
88 people viewed this question
Usually answered in minutes!