I have a windlass powerwinch 450 p77731 and when I drop it freefall to anchor it works fine, when I start to retrieve the anchor it sometimes stops...motor runs but gypsm does not turn and rope appears to be jammed in the wheel..push freefall and it starts working for a short time..It has caused the leather looking washer in side the unit to go bad .do I have a rode that is the problem, or is the unit defective.....just installed it this is happening.... Don