Okay, it's my fault that this happened (I think! LOL!)
I was opening the garage door and it didn't want to go up. I hit the button the second time only to see the very top of the garage door being pulled away from the front wall. It was then that I realized that the door may be stuck in the ice at the front of the garage. I chopped all the ice away, and the door started to open, when all of a sudden it lurched, something went flying across the garage, and it stopped.
The chain hung down from the pipe type track of the opener. <YIKES!> I got the step ladder and saw that the chain had come off the sprocket. The part that flew across the garage was the sprocket cover. I couldn't get the chain back on the sprocket w/o taking the chain apart. Once I got the chain back on the sprocket, I hit the button and the door started moving, then all of a sudden the chain came off again. Does the trolley that glides on the pipe have to be in a specific spot to make the door have the right up and down "timing?" Does anyone know what the measurment is?
HELP!!!!!
Jackie