Question about Kenmore Microwave Ovens

1 Answer

Not heating We purchased a kenmore microwave hood combination at a local auction . everything works good on it , but it does not heat when turned on. The model no is 721.8039700. What can be done make it heat?

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.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,214 Answers

Hope you got a good deal, because you can replace all the microwave components for about $200.00.

It's going to be one of the following components -

1) Fuse
2) Diode
3) Capacitor
4) Transformer
5) Magnetron

Fuse is easily checked. If it's blown, replace with an identical type and rating. If it blows again, then dig deeper.

Diode is very hard to test, and cost is cheap. Replace it.
Capacitor is very hard to test under load, and is a little more expensive. Replace.

Transformer can be tested if you know what your doing.

Magnetron is not easily tested without harm to humans. Replace with same type or approved interchangeable equal.

Let me know your findings and I can help more if needed.

Posted on Jan 21, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Why is my microwave model 60609 making extremely loud noise and not heat?


Usually that is a sign that your magnetron tube has gone bad (shorted out).

Jun 10, 2014 | Kenmore 80822 80823 80824 80829 1500...

1 Answer

Kenmore microwave hood combination


Most common cause is the magnetron tube.

Feb 12, 2014 | Kenmore Microwave Ovens

1 Answer

Whirlpool microwave hood combination won't heat


There are three common issues, the magnetron "heats food" a cracked high voltage diode, a shorted high voltage capacitor.

Mar 10, 2012 | Whirlpool Microwave Ovens

1 Answer

Microwave will not heat food


The reason why it will not heat food is because the magnetron is no good. You might be able to salvage one from a junked microwave or you can sometimes purchase "as is" microwave in a local pawnshop for 5 bucks or at a local thrift store.

Mar 08, 2010 | Kenmore Microwave Ovens

1 Answer

Kenmore Microwave Hood Combination 721.80019 does not heat. I follow all the troubleshooting procedures. Nothing solved the problem. Help!


My kenmore microwave will not work. The light stays on inside, buttons will push, but the start button does nothing. I've tried everything. The last thing I did was express defrost which was fine. Could it be something really simple? I hope so.

Nov 14, 2009 | Kenmore 63792 Microwave Oven

1 Answer

Kenmore Microwave Hood Combination: over the stove Model #721.80602500


Disclaimer: I'm a DIYer, not a technician.

Our GE over-the-range microwave stopped producing heat yesterday while warming part of the T-giving feast. Everything else (fan, control panel, light) works fine.

After disassembly and testing last night, I discovered a defective "secondary door switch." Your Kenmore uses a similar switch (~$19 on-line), and that might be the problem. But it also could be other things, such as a bad thermal cut-out.

If you know anyone who's handy with a multimeter, most of the basic diagnostics seem to be pretty straightforward.

Nov 23, 2007 | Kenmore 62622 Microwave Oven

1 Answer

Microwave not heating unless exhaust fan is on high


check the control unit and high voltage circuit, and megnetron, high voltage diodes, wiring and high voltage fuse etc.,

Sep 26, 2007 | Samsung MW1030WA Microwave Oven

Not finding what you are looking for?
Microwave Ovens Logo

Related Topics:

160 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...