Question about Maytag MMV4205 Microwave Oven

1 Answer

Microwave turns on for 1 sec and then turns off.

I have a GE Profile microwave/convection oven (2002). I microwaved some chocolate to melt it and now it is not working. It turns on and runs for 1 sec then a whole bunch of 8's come up on the key pad. The convection part of the oven still works. Can you help me.

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  • jimwa3pht Jan 08, 2009

    Microwave runs for 2 seconds and stops. Will only run again after it has been repowered at outlet.

  • Anonymous Mar 19, 2014

    I need only 1/2 power to melt chocolate

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  • Maytag Master
  • 8,872 Answers

Sadly, we hear of this over and over.

This is due to a defective or loose magnetron causing electrical interference and disruption in the control circuit board.

If your magnetron was recently replaced, it may have loose mounting nuts or bolts or maybe the wire mesh RF gasket was not installed or got pinched.

It may also need a new high-voltage diode and stirrer, and the cavity may be affected.

Details are in their bulletin here. Even if your model is not on the list, the same problem can occur, requiring a kit. The parts kit is similar to this one.

(Your model may use a different kit - this is shown for illustration purposes only).

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

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.

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

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

They may send you a replacement magnetron. GE Customer Service is here.

Posted on Nov 23, 2008

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Posted on Jan 02, 2017

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