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Galaxy 721.80002401 microwave has no power

This is 2 years old. We dont hear a power surge sound and although the power is on high it seem like its running at 20% power. Everything else works except the power is very low. Can I replace the PCB or another part or just trash it.

Thanks Mike

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  • Microwave Ovens Master
  • 8,865 Answers

Galaxy, eh? I wonder if that is the same as the Kenmore model 721.80002401...

Low cooking power usually means you have a bad magnetron.

It should have a warranty of 5-9 years on the magnetron itself. That means that you'll have to pay for labor, but the manufacturer will cover the cost of the magnetron.

Labor might be $75 for a home visit and $75-90 to do the work.

You can save a lot by taking to the manufacturer-authorized service shop yourself. They may charge a $25 diagnosis fee to check it out, and apply that to the labor if you proceed with the repairs.

The first step is to grab your manual and contact the manufacturer.

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

Posted on Jun 11, 2008

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I have over 20 years experience with microwaves and over 25 with all other electronics, and I'll have to say it sounds to me also like some kind of power surge "scrambling" its "brains".

Or possibly its power is being interrupted for a fraction of a second and having the same effect.

A microwave should really be on its own circuit breaker.

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

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Is very unlikely that there could be any other electrical failure since everything else seems to be working.
If you are able to fix it yourself then is way more cheaper just to buy the magnetron.
Click here to find the magnetron.
Before you do any work on this device, please click here to know how to discharge the high voltage capacitor and other safety concerns when working with devices that generate high voltages.
I would say is not worth it to spend more then $100.00 for a 5+ years old microwave.
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