Question about Kenmore 63652 Microwave Oven

1 Answer

Microwave no heat

My kenmore microwave model 721 made a loud pop and now it doesnt heat anything, and humms a lot louder

Posted by on

  • Anonymous Feb 20, 2008

    Same problem, though didn't notice a louder humm.  Everything seems to work, it just doesn't make any heat.




    Model number 721.63252300

  • jeepguy75 May 10, 2008

    I have the same problem with my Kenmore 721. It seems to work fine but stopped heating had sears come out and look at it and the guy said "bad control board" so I sent it off to a place that repairs the boards. They sent it back and said "nothing is wrong with the board, probably a door switch". I just checked the door switches with an ohmmeter and they are good. IS it the magnetron?

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 43 Answers

The "HUMM" indicates a breakdown in the High Voltage Side. The loud "POP" was the breakdown. You have only four Components in the High Voltage side.

1. High Voltage Transformer. You can eliminate this as the problem. Why? If it was the problem it would have blown the line fuse, and would have given off a burned transformer smell.
2. High Voltage Diode. Usually will Burn or Pop when shorted, but will then OPEN the Circuit and there is no "HUMM".
3. High Voltage Capacitor.This is the Silver Can with the two terminals on top. It can SHORT internaly between the plates (the two terminals) and give the "HUMM".
4. Magnetron. This is my number one suspect. A SHORTED Magnetron.

Posted on Feb 03, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Electrolux microwave model fgmv185kfa made a loud pop and now won't heat anything and sounds louder than normal when running. Everything else seems to b working fine


SOUNDS TO ME LIKE YOU BLEW A FUSE WHICH IS INSIDE THE UNIT. IF IT'S UNDER WARRANTY TAKE IT BACK BECAUSE IF YOU OPEN UP THE CASING & FIX YOURSELF THIS VOIDS ANY WARRANTY

Dec 24, 2012 | Microwave Ovens

1 Answer

Kenmore microwave oven model 721


Hi,
On the link below is the list of Kenmore microwave oven model manuals starting with 721.Click on selection to download.

www.managemylife.com/mmh/owner_manuals/search?query=Kenmore+micicrowave%2Fhood+combo+-+7218924680

Hope this helps.Thanks!

Jan 07, 2012 | Microwave Ovens

1 Answer

My Kenmore 721-63259301 manufactured Sept. 2007 recent stopped working. I first noticed the issue as I went to reheat some leftovers. The unit powered on (internal light lit up turntable rotated timer...


Sorry I can't help you but we purchased this same model 11 months ago and ours just stopped heating this week. Sure expected it to last longer than this.

Jun 12, 2010 | Microwave Ovens

1 Answer

Wjusino just asked: My kenmore microwave doesnt heat.


In all likelihood the mangnetron has failed, or perhaps even the Power Supply. or a fault that is shutting the system down for safety reasons You need to have it serviced by a reputable service centre/man.
Ensure you get a firm "Quote" before proceeding, and remember these days the cost of repair can equal or exceed the price of a new one.

Jan 26, 2010 | Microwave Ovens

2 Answers

Microwave Won't Heat Food


My Kenmore 721.63259301 would not heat items up so I came here and saw the parts required and was just about to order them when I checked the online owners manual and found this. FULL FIVE-YEAR WARRANTY ON
THE MAGNETRON For five years from the date of purchase, if the
magnetron in this Kenmore microwave oven
fails due to a defect in material or workmanship,
Sears will repair it free of charge.
My microwave has a manufacture date of July 2009 so I will be taking it right to the closest Sears repair center for a free repair. I suggest everyone do the same.

Aug 18, 2009 | Kenmore 63792 Microwave Oven

1 Answer

Kenmore microwave model 721-63252301 - no heat turns on - but nothing is getting hot


we are going to try to find a fuse and replace that or just buy a new microwave

thank you

Jun 05, 2009 | Kenmore 63252 Microwave Oven

1 Answer

Loud pop and microwave doesn't heat anymore


I have a GE Profile Spacemaker model JVM3670WF001, purchased I think in 2003. Pop sound, no Heat. Light goes on, carousel goes around,
Repair or new microwave

Jun 03, 2009 | GE Profile Spacemaker Over-the-Range...

1 Answer

Yesterday microwave worked fine today it doesnt heat anything and power level does not show up on the led screen kenmore model 721


Sounds like the magnetron has failed. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.

There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.


Benjamin

Apr 25, 2009 | Kenmore Microwave Ovens

3 Answers

Kenmore Microwave model 721 62624200


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

We're happy to help and we appreciate your thoughtful rating of our answer.

Nov 22, 2007 | GE Spacemaker JVM1640SJ Microwave Oven

Not finding what you are looking for?
Kenmore 63652 Microwave Oven Logo

450 people viewed this question

Ask a Question

Usually answered in minutes!

Top Kenmore Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

8820 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Michael Thomas
Michael Thomas

Level 3 Expert

3051 Answers

Are you a Kenmore Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...