Dc 14 animal emits a terrible smell after about ten minutes of us

The motor has seized and burned up. Its going to need professional repair as those motors are electrically controlled and not normal 120V motors.

perhaps the filters are dirty you should clean them or change them .it could also be caused if you have sucked up a liquid and its gone stale try the filters first

You need to have the vacuum cleaned out. If you are good with tools, just remove the motor and fans assembly, take the fans off and wash them. Brush ALL dirt out of the housing and reassemble. Your Electrolux dealer can do this but it isn't cheap. I used to be the service manager for my area. Since it isn't under warranty, you can have ANY reliable vacuum cleaner shop give a good cleanout. NEVER put anything into the cleaner to make it smell good. Electrolux cleaners get their power by having a straight through suction. The air goes through the motor. Adding smelly things can crystallize onto the motor and burn it out.

This sounds like your motor going. If it winds up then down it could need new motor brushes or a new motor. Also, if the smell is kind of rubbery it could simply be the powere nozzle belt. Hope this helps, Chris

I had the same problem with my DC15. With the brushes going it smelled like burning hair (bad). I had cleaned the brushes many times and it didn't seem to help. I even took it into a Dyson authorized repair shop and they couldn't find anything wrong with it. As a last resort I called Dyson 866-693-9766 1-866-My-Dyson. I was on hold for about 15 minutes before getting a live person. He had my problem diagnosed in literally 1 minute. I had hair wrapped around the spindle, inside the brush/roller mechanism. He walked me through taking apart the brush mechanism (super simple only using a quarter). There was a TON of hair crammed around the spindles and inside the brushes. All wrapped very tightly. I hung up with him to do the cleaning. It took some time and I had to use tweezers to get inside the rollers/brushes. But I got it all, put it back together (which was really easy) and tested it out. No burning hair smell at all. FIXED!

Clean the filters and check to make sure you don't have something fowl stuck in any inlets. Spray Lysol into the hose while the unit is on and see if it relieves the smell. If it is mildew or a dander smell you have to clean the filters and then use the Lysol.

Try buying "Citronella" from an essential oils dealer (maybe eBay?) Apply 6-12 drops on the paper filter element...you'll LOVE the smell.
P.S.
Haven't you asked this question before?

Have you checked the the hoses are free of debris?
Is the setting for floor on when you are vacuuming the carpet.

Turn id on an see if it will **** up some pennies.
Use the hose for that.

Check for string hair, etc cought in the brush.
Use the small pick knife that should have came w/ the dyson to cut away and thing caught in the brush.

Hope this helps.

Sketchlab.com

Make sure that the filter is completely dry before you reinsert it. If not, it will mildew, emitting a horrible smell. When you clean your cylinder, you must wait for at least three to four days to make sure that it is completely dry.

Well it sound like you do need a new belt because of how the smell is you might want to stop using it because the smell comes from the burning and over heated belt my solution would be to get a new belt and that should fix it if you need anything else you know whre to find me.