I have a strong dry crb that I purchased in sept. Never had a problem with it until today. Turned it on and nothing, just the hum of the motor. So I took off the brushes, thinking something's probably stuck in there. There was a twisty tie wrapped around one of the brushes, so I took that off and tried again. This time the brushes spun but the machine was making a really loud grinding type of noise. I didn't want to do any damage to it so I just put it away and used the 360i. Any ideas or...
Crb help
Crb help