I replaced the motor in my DC05 at the beginning of last year and it has worked well until now. (Apart from a brief interlude when I had to cut off the plug and a couple of inches of cable to get round a break in the conductors.)
Today when I powered up there was the very briefest of spins, just a fraction of a second, then nothing. I removed the motor and checked the cable and switch for continuity. Both fine. But there's an open circuit between the connectors to the motor itself. The thermal cutout hasn't. There's about 4 ohms across the brushes and it all looks reasonably clean in there.
So it appears that the motor is dead. It hasn't had a lot of use over the 20 months or so since new, as we've been away on our narrowboat for two periods of six months each. I regularly clean the top filter; I replaced this and the HEPA filter at the same time as the motor.
Is the YDK motor as supplied by Manchester Vacs up to the job? Or should I really have to replace it every year? Perhaps I just got a duff one. MVacs say that it's well outside the warranty period, which I accept, but does anyone else have experience of short-lived new motors?