I have a Dyson DC39 Animal vacuum cleaner with an animal turbine head fitted.
The vacuum cleaner has good suction with the other heads I use and also when no attachments are fitted, but the animal head has started misbehaving.
When the head is attached the roller spins and is quite happy to spin on tiles of wooden floor, but when I move onto a low pile carpet the head will not rotate and hardly picks anything up.
I've taken the head apart and cleaned each end of the roller and removed all dirt and fluff.I also unscrewed the recess screw and cleaned behind the rubber disc which sits at the one end of the roller.I really thought that may be the problem, but there was hardly and debris behind it and to my disappointment this made no difference.
Any ideas would be very gratefully received.