Defect is apparently by design.

Can only agree with me here. For me, this nozzle was at DC35 factory. Unfortunately also here after a very short time remains the nozzle just stand one must start again. Have I then bought this spare nozzle and the same problem has occurred almost immediately. Ss the newer versions of DC series use a completely revised version and the new base unit is much stronger I go here from a system-related error. Unfortunately, this is for me a knock-out criterion. Me again Dyson :-(.