I have a moi monitor 40 it keeps making a loud buzzing noise that hurts my ears how do I make it stop.

Could be the brush roll, remove brush roll and see if noise is still there when brush roll motor is running.

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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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Could be a belt screeching. Fan belt, A/C belt, Serpentine Belt, alternator belt, etc. Easiest way to isolate which belt is to open the hood and use your ears to see where the screeching is coming from. Left, right, front, behind the engine? Spray some WD-40 on the belt you think is making noise and if it quiets right away, then that is the belt making the noise. Either the tensioner needs adjusting or the belt needs replacing. The WD-40 does not hurt the car, it'll start screeching again in a few days when it wears off.

Unfortunately the car's Japanese not German...ahem.
We find with our RX that if you fully open it, and then slide it about an inch forward it stops the buffeting. Another alternative is open a window slightly.

well mine came with a three year warrintee, so iv sent mine back twice already, worst moniter, try finding your receipt and then going on to acer's online support

Change the batteries. This is the symptom of batteries that are nearly dead.

time to check your filters
if you bought it used check your hoses also
some people think sunp pump hose is just like vacume hose but man does it whistle (almost enought to pop your ears loud )

try spraying wd 40 on the motor ends to see if it will stop if not try the rollers normally they go bad and make the belt squeel.

It sounds like a bad internal connection or a component failing. If the picture still is very good take it to a known good repair shop.