Whirlpool MH3184XP Microwave Turns On, Heats, but sounds like fans not working. 4 years old, fans worked fine until they seem not as loud anymore. The magnetron is working fine as it heats (did the 1 cup water/2 minutes heat test), turntable works, everything does except for the level of the fan sound.

Whirlpool Microwave Buzzing Loudly - ApplianceBlog

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Aug 12, 2011 - 10 posts - ‎2 authors
My Whirlpool MT4155SPS-2 microwave oven has recently started to buzz loudlywhen operated. The sound is getting louder and more frequent ...

Whirlpool making intermittent loud buzzing noise Microwave ...

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Whirlpool microwave ovens making intermittent loud buzzing noise related questions and answers. Ask your ... ...loud buzzing noise and it doesn't heat. i just tried it again and let it run for 1 minute. ... Question about Accuwave Microwave Oven.

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If your microwave buzzes loudly and produces no heat you probably have a defective power .... I have a whirlpool oven range and it's less than a year old. .... Humming sound stops when I open door to remove food, but when door is closed, ...

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Since the microwave is humming, that tells me that the diode is bad and needs to be replaced.

the unit inside the microwave that heats called the "magnetron" has gone bad or the circuits that power the magnetron and other parts of the unit have failed. if its under warranty still, send it back to the manufacturer. if not you can call some repair shops and see how much it would be to service it, but its most likely going to be cheaper to purchace a new microwave since they are relatively cheap these days, they dont make them long lasting anymore, they are a "disposable" product these days

This is probably lack of lubrication of either the cooling fan or the turntable if it has one.

If the cooling fan fails totally, the magnetron will fail so service the unit immediately.

I also have the same microwave model and with the same problem. It is not quite 2 years old. I have a service call scheduled but did e-mail customer service at Whirlpool to inform them of this. Sounds like it could be defective model and a fire hazard. You should also inform them of yours.

The oven may not be seated properly. check the bushes at the bottom.

hi

power spikes are very damaging to a microwaves internal parts, it sounds like your transformer and/or magnetron are blown. if the unit is out of warranty I would recommend calling a repairman or getting a new microwave (the transformer & magnetron are expensive and dangerous to work on) also get a small single plug surge protector for the new one.

My Whirlpool MH3184xps is shooting a spark when in use with the rack. When the rack is removed the oven works fine. I am guessing that some of the coating on the rack has cracked and peeled and is exposing some aluminum. Has anyone else had this problem?

check turntable motor or bush, this very easy problem, you can use oven no problem..

Downstream of the main 20 amp breaker in the upper right hand corner, is a miniture 4 amp fuse in an inline fuseholder. I replaced this and so far, so good