How do I Set the Limits on a Genie Chain Drive (open chain) Garage Door Opener?
You have an open limit and a close limit on your garage door opener. These limits set the distance the door will open or close before stopping. In the down direction, if the limit is set beyond the point at which the door closes fully, the door will hit the floor and act as if it is hitting something and the safety feature tells it to reverse. If you have a screw drive or chain glide unit you need to set the limit closer to the motor, so the opener shuts off earlier (at the point the door closes). If you have a chain drive with limit lugs attached to the chain, one for the up limit and one for the down limit, you need to experiment with the placement of the down limit lug on the chain, so the opener will shut off at the point the door closes. If your chain drive has ‘driven limits,’ the limits are individually labelled and adjustable using a screw driver. The ‘driven limits’ are located on the back or side of the motor head. You can find garage door limits on our Web site in the Genie
