Really loud fan/device getting very hot

Can someone advise as to the best thing to do for my Surface Studio that is getting hot? The fans make noise so leads me to believe they are not working at their best. I did use a can of air to try and blow out the dust, but after watching the tear down video, realize that the air didn't touch the fans as the cover would have to be removed first. My machine is 3 years old. I certainly don't feel it should be breaking down already! Do the noisy fans imply that they are likely to stop working soon?Thank you!