I have a problem when using the wand on my DC-14. I’ve cleared/cleaned everything, but it appears to be the part that diverts air/suction. When I first turn it on with the wand free, for 1-2 seconds it sounds normal, but then the sound changes and there’s little suction from the wand. It’s find when using the floor/carpet part.
In that little vent on the canister lid beneath the handle, I see some sort of flap that looks like it’s not working properly (not sure if the vent is supposed to be open or closed when using the wand)—when the sound changes the flap is half open. I haven’t tried to unscrew that black plastic part that has a spring on it, which covers the part where the flap is.