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Microwave buzzing

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kkm3

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I opened my microwave door panel to replace the door handle and now its making this buzzing noise everytime I open the door or start to cook. When the door is closed there is no sound. Please help!!!
 
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Any time your working with a Microwave door you should know how the interlock switches work. You probably have the switches out of adjustment. They are the primary safety so the microwave cannot turn on with the door open.

Your lucky you haven't burnt the thing up or worse.
 
Must be electrical arcing, or something vibrating inside.
 
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