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No power to unit, the oven went boom and no we have no power to the unit

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By unit, do you mean the stove or do you mean where you live? If the former, then call a repair person. If the latter, check your main switch isn't tripped.

Posted on Apr 15, 2017


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Panasonic NN-SD277. Almost 3 years old. We pressed start, it went for about a second (may have made a sparking sound) and then it just lost all power. There is still power to microwave but no lights are...

We also have this same microwave. It is less than 3 years old. We've had nothing but problems since we purchased it. In November 2010, the microwave made a crackling sound and then BOOM! Nothing. I have been back and forth with Panasonic. I refuse to pay for the repair on an appliance that is less than 3 years old. It's ridiculous!

Anyway, the problem t is an issue with their inverters. Google it and you will find page after page of the same story.

Jan 21, 2011 | Panasonic Microwave Ovens

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I heard a boom noise and discovered a crack in the back wall of my Tappan microwave oven. Is it still safe to use?

NO becaus the boom you heard was from a leak in the high voltage insulator of the magnetron or a MOV exploding from an electrical surg from the grid any way IT IS NOT SAFE TO USE the microwave oven... they are are so sheap replace it


Jan 18, 2011 | Tappan Microwave Ovens

1 Answer

Power on microwave goes off and on. Also will not heat food or beverages. Model# MH9181XMB

this is a short from the capcitor to the magnatron this is a very dangerous fault and in my expert opinion the unit is a write off and needs to be trashed

i hope this helps you

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please rank this advice if it helped you.

Jan 06, 2011 | Whirlpool Microwave Ovens

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Microwave oven no. NN-A514 cuts out when cooking

I had that issue and I opened the unit and there was a fuse near where the power went in. Went to the small local hardware store and they ordered it. It was well under $5 (can't remember) but it still works over 10 years later.
If the fuse blew again I would have trashed the unit.

Dec 21, 2017 | Panasonic Microwave Ovens

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Microwave dead

one of 3 things, for sure the internal fuse is gone, then check for a: bad Hi-Voltage;diode, Hi-Voltage capacitor, or the magnetron tube is defective,none are too hard to change out,but the magnetron is fairly expensive to replace:

Sep 22, 2009 | Microwave Ovens

1 Answer

Power went out while cooking. Now light, and fan doesn't work either. Could there be a fuse?

Assuming that you have checked the voltage/breaker at the unit, There is a fuse located behind the user interface. You must exercise caution in this area as there is a high potential for harm due to the capacitor having been energized. If you are not comfortable/experienced handling high voltage, then I would strongly recommend calling for service. Hope this helps... Bill

May 29, 2009 | Kenmore 63792 Microwave Oven

1 Answer

Unit lost power

there is an internal ceramic (white) fuse in the microwave just under the cover on the right side

May 04, 2009 | Microwave Ovens

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