I have a 6year old DC14 that is used nearly every day, yesterday, when I tried to use the hose, adjusting the setting first, the corregated hose just seems to go stiff with to much suction, motor seems to race, then after about ten seconds it starts sucking thru a small vent on the body, any ideas please ?
Never had a problem with it before, is it something to do with a clutch I've read about ?
Sounds as though you may have a blockage in either the wand or hose I suspect. If you take the wand off and look down the aluminium tube to see if you can see light at the other end. If that's ok, remove the hose and do the same thing.
You'll just need something long and thin like a garden cane to dislodge whatever's stuck.
Also worth checking the u-bend pipe at the bottom of the hose for the same thing too.