bissell 1200 brush not turning?

My spot bot has just started to do the same thing. Worked great last time we used it, and now the brushes don't turn and makes the same grinding noise. I tore mine down to inspect it and found it clean and a light amount of grease on the gears that drive it. The motor that power the brushes has voltage when the brush cycle comes on, and I discovered that if I try to "help" the motor out by turning the gear by hand, it tries to work. I've determined that the motor itself has worn itself out. I haven't had a chance to price the motor out, but I'd almost bet it won't be much cheaper than a new one.

James
January 2010