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Kenmore-microwave-loud-not-heating, start right here find appliance parts, lawn & garden equipment parts, heating & cooling parts and more from the top brands in the industry here. click on shop parts, or select the kind of product you're working with on the left and we'll help you find the right part. shop parts. The microwave does not heat and makes buzzing noise. let us consider the situation when the microwave does not heat and produces buzzing noise. 1) high voltage transformer, here are the most common reasons your kenmore microwave is loud and noisy - and the parts & instructions to fix the problem yourself. we make fixing things easier!.

Our over the range microwave is 3.5 years old. last time used worked fine. tried to use it next day and got loud buzzing sound. curious if others have had this problem with same model and probability that problem is with the magnetron which is still under warranty. am disappointed that unit..., get shopping advice from experts, friends and the community! this am when turning the microwave kenmore model 721.63252301 on a loud popping noise was made and now it will not heat my coffee. what could be the problem and can i fix it?.

A microwave that does not heat up may have a broken magnetron. this is the part that makes the heat to cook the food. if it is broken, it may blow a fuse in your microwave which could lead to other components failing., cause 1 diode the diode converts the a/c power output of the transformer to d/c, doubling the voltage to nearly 5,000 volts. this high voltage powers the magnetron to heat the food. if the diode burns out, the magnetron won’t receive enough voltage to operate, preventing the microwave from... - kenmore microwave.

If your microwave is making an unusual or loud humming noise, you may have a problem with the magnetron. this component is part of the high voltage circuit and provides the microwaves that generate the heat.

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