I just reinstalled this dishwasher which is brand new yet six years old into my house. I know that sounds odd but the house was a foreclosure that someone tried to flip and put all new appliances in and never used them. The dishwasher starts and runs properly but the motor had a hard time he first time I turned it on kicking over.and now it is screeching like something is rubbing. Everything else works great is there any way I can grease the motor and if so ith what type of grease?