Is anything wrong with my hair dryer?

There is always a lint like substance on the back by the vent....if i don't clean it out, then my dryer stops working. How can I prevent the build-up or is it just something hair dryers do?? Where does the "lint" come from?

Is anything wrong with my hair dryer?

From air. The lint is skin particles and just everyday solids that exist in the air we breathe. Plus you're using it on your hair while it's being styled and moved around, kicking up even more skin cells and such from your head.

Think about it, the end of the hairdryer is a powerful vacuum, sucking in air powerfully to blow out the other end. The solid matter it sucks in is going end up on the vent.

Your dryer might have an auto-shutoff to prevent overheating. If you don't clean the buildup regularly, a dryer can overheat.

Not much you can do about it, just keep it clean.

Is anything wrong with my hair dryer?

it comes from the air being pulled in to make hot air, you just have to clean it.

Is anything wrong with my hair dryer?

It's just the dust and dirt that accumulates on your hair dryer, it's all very normal. You should clean it after you've blow dried your hair and it has cooled down. Just swipe it with a damp paper towel. The reason it shuts off, is because the blockage over heats the little motor inside, so it cuts off your blow dryer so it doesn't break on you. If you just keep it clean you shouldn't have any more problems.