Dometic microwave model dotr12cb runs but does not heat

William Miller

• 9179 Answers
• Posted on Dec 31, 2007

SOURCE: Microwave won't heat food.

This would be under warranty, so Maytag should take care of it for you: http://maytag.com/support/index.jsp

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

William Miller

• 9179 Answers
• Posted on Aug 21, 2008

SOURCE: Whirlpool microwave MH1170xsy0 1000 watts

With the symptoms you mention, I would suspect:

- loose or corroded connection at the magnetron
- bad magnetron
- shorted high voltage diode

You can usually find helpful exploded view diagrams and order parts by entering your full model number here.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
http://www.gallawa.com/microtech/mag_test.html
http://www.gallawa.com/microtech/xformer.html

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

SOURCE: Microwave won't heat food.

My Whirlpool microwave, over the stove, stopped working when my son used it to heat his food and a heavy sound came out, like something exploded in it. When I check it, there was nothing broke. Everything works fine except that it does not heat. I will appreciate any help

Nate

William Miller

• 9179 Answers
• Posted on Feb 08, 2009

SOURCE: Sharp microwave oven model r-1440 runs, but doesn't heat food

Assuming your inside light and turntable come on when you try to microwave, with the symptoms you have, I would most strongly suspect a bad magnetron or a loose and possibly corroded connection on the magnetron's terminal.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

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.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
(if it's not shorted or burned, it'sprobably okay)

http://www.gallawa.com/microtech/mag_test.html

The best place to order parts for this brand is Encompass (formerly Tritronics).

Or you can call them toll-free at 866-779-5835.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

SOURCE: Microwave does not heat food or liquid

I hate to tell you this but your magnetron may be shot. Its the part that actually makes the microwaves. The best thing I can recommend is get a new oven, magnetrons are expensive and not easy to replace.