Question about Maytag MMV4205 Microwave Oven

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Wireing Diagram Replaced magnatron. Can you email a wireing diagram to aid in checking circuits?

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There should be one tucked away behind the control panel.

If you don't find it, feel free to reply here or to me directly via my site (see below) and I can e-mail it to you.

If you tell me what your symptoms are, I can probably help you figure it out.

You'll find a link to our site in our listing here on FixYa:

Posted on Mar 10, 2008


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Posted on Jan 02, 2017


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What do i do if my Hamilton beach microwave will not heat anything!!

Most of the time if the unit won't hest anything, the the power diode.

If you are familiar with working with very high voltage, open the unit, carefully discharge the power capacito using an insulated screwdriver.

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Copy and paste this link for the fuse located in the control panel.

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1 Answer

How do i replace the magnatron on a kitchen aid khms147kss

You would need to remove it from the wall, using the installation instructions here, review the safety information here, then remove the outer cover and discharge the high voltage capacitor.

Then you can swap the magnetron.
You can find links to helpful exploded view diagrams and part ordering help here.

I recommend that you bookmark that link to your favorites.We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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it sound to me as if the high voltage diode is shorted. It could be inside the capacitor or out board the cap. The capactor could also be short but this is a rarity. Diodes are a cheep item . repace it and if it don't work its probably the magnatro. good luck.

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This doesn't have the diagram hidden away somewhere inside? Check at the bottom edge of the control panel, transformer brack, or rear of the oven. Otherwise, you can find wiring diagrams of earlier models that may be close enough. Just enter your model number here:

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