Question about Kenmore 66469 / 66462 / 66464 Microwave Oven

1 Answer

I have a two year old kenmore 721.66462. It was working fine and then it started to make a major hum and now the food does not warm up. I disconnected it and tried the outlet with a fan and the outlet is fine and so is the outside circuit breaker. I then plugged the microwave into another outlet and it still has the same problem. Any ideas?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 8,909 Answers

It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.
Make sure the !!!!capacitor is discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 on high resistance range for short circuit, the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

Posted on Dec 28, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My Rusell Hobbs 20L microwave wont heat food,what could be the problem?


If the control circuit turns on the power supply to the magnetron tube, the big power transformer should hum. Then after a couple seconds, it should hum louder as the magnetron warms up and starts to put out RF. If everything stays stone cold, the magnetron is probably shot.

These are repairable, and the parts are available. But you have to decide whether it is worth repairing. If it's past warranty, probably not. I am a radar transmitter engineer with 40 years' experience with these kinds of tubes, and if my ten year old microwave quits, I'm going to just throw it out (after I take it apart just to see what quit).

Apr 06, 2017 | Microwave Ovens

1 Answer

My Kenmore Microwave slowly heats but mostly the dishes vs. the food. By the time the food is warm enough, the plate or mug is practically baking. The microwave is only 4 years old, so I can&#39


Sounds like you don't have proper microwave-compatible plates or mugs. Must have lead in them, or in the paint (!?!) Try a plastic plate or even a paper plate. I can't think of anything that would make the microwave oven do that, UNLESS it's a microwave/convection oven, in which case, the convection heater must be coming on whenever you are trying to just use the microwave function.

Sep 24, 2014 | Kenmore Microwave Ovens

1 Answer

Does not heat food


call that company server

Apr 05, 2010 | Kenmore 66292 Microwave Oven

1 Answer

Kenmore microwave's exterior and buttons


Hi it is quite normal for the outside of a microwave oven to get quite warm to the touch. with regard to the buttons not working; this will be due to a faulty touch panel mebrane that will need to be replaced. They are not too expensive so is a viable repair

Hope this helps

Jan 07, 2010 | Microwave Ovens

1 Answer

Hey Thanks!! I tried to warm food in the microwave and the microwave started to make a strong humming noise, didn't warm the food and has an strong electrical burnt smell. -What's wrong?


The unit had a meltdown. Anytime you smell something thats not normal its alway an internal failure. You could send it out to be looked at but at the price to replace it your better of getting a new one.

Nov 27, 2009 | Microwave Ovens

1 Answer

After use, fan keeps running and control panel not working


Hi, this is a major chip fault. this chip is located on the control board and, it is responsible for initiating the cooking cycle correctly. you will need to replace the control board asap. it has failed.

Jun 19, 2009 | Kenmore Microwave Ovens

1 Answer

Microwave not heating up food


This model is a lower-end type that probably didn't cost very much. Since it's over 2 years old, you have no warranty left. Most appliance repair shops charge extra $$ for servicing installed items in the home. You'd probably be better off purchasing a new comparable model. The labor fee alone might equal what you paid for it.

Jan 08, 2009 | Magic Chef Microwave Ovens

2 Answers

My panasonic genius microwave is about 4 years old and it just died is there any way of fixing it


my microwave started giving me notices to check the manual and would stop cooking the food. I turned the machine off, unplugged and looked at the back panel. Was I surprised to find the air flow vents completely covered in black dust. After wiping it up with a cloth and then a small toothbrush to completely clean out the air holes, the microwave works fine. What a simple solution to something I was beginning to think would be a major repair job. Surprise---simple is best!!

Sep 29, 2008 | Panasonic Microwave Ovens

2 Answers

Noise/humming while cooking; especially popcorn; intermitent on other food


Popcorn is heated by a metallic insert in the bag. This causes some additional power consumption by the magnetron. It is no cause for alarm.

Dec 19, 2007 | Kenmore 80412 Microwave Oven

Not finding what you are looking for?
Kenmore 66469 / 66462 / 66464 Microwave Oven Logo

90 people viewed this question

Ask a Question

Usually answered in minutes!

Top Kenmore Microwave Ovens Experts

William Miller
William Miller

Level 3 Expert

9047 Answers

Devabhakthuni...
Devabhakthuni...

Level 2 Expert

225 Answers

Jaime Hernandez

Level 3 Expert

2318 Answers

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

Answer questions

Manuals & User Guides

Loading...