door crooked and not closing. Upon inspection the door limits are off on the marantec operator. No longer manufactured on this model. Will need either new marantec or a liftmaster 8587. Carriage house door. The door is also crooked. The cables are loose on one side. Will need to add quarter turn to each spring and relieve the door for proper balance if door. The new motor can run the door but with the cable rubbing so hard on the right and the loose cable on the left the door isn't in good working condition. Recommend replacing to Liftmaster operator and rebalancing the door as per normal carriage house door maintenance.