Question about Maytag MMC5000 Microwave Oven
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You say when you "power on" the fuse blows? If that means when you hit the START button to cook, then you probably have a shorted high-voltage capacitor. If you mean it blows when you plug it in, you probably have a shorted door switch. Your microwave may also have a wiring diagram pasted on the inside of the outer wrapper or in an envelope. That will help in your tests.
Posted on Jan 05, 2007
It's more likely to be your high-voltage transformer, but you seem qualified to do the diagnosis.
Here's a good place to order the parts:http://tinyurl.com/gv383
If the fuse blows immediately when you hit START, then it's the HV capacitor.
Since you say it blows 2 seconds after you hit START, it's probably the HV transformer.
To order parts and see exploded views, tryhttp://tinyurl.com/gv383
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Unplug your microwave and turn it around and remove the screws holding cover on and then remove the cover. Look for where the power cord goes into the back of the unit and follow the black wire from the cord to where it ends. It should stop an either a circuit board or a fuse holder. Make sure that you replace the fuse with the same amperage fuse as what you take out. You will find the amp rating stamped on one of the silver collars on each end of the fuse. Good luck!
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Ok,Thanks for the quick response.When i hit the start botton it runs for about 2 seconds then stops,no power at all,Fuse blown again.So the capacitor is defective.Is it worth if i changes the capacitor or
i just buy a new microwave.BTW how much is the capacitor?Thank you..
Thank you for the response...
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