Unit. The garage door opener ought to operate by a complete open up and close cycle to the power limit for being Disconnect power: Unplug the garage door opener or convert off its circuit breaker before beginning adjustments. Welcome to GarageDoorPedia.com, The ultimate portal for all your garage door needs! https://fernandokzodq.blogpostie.com/59606132/not-known-details-about-old-garage-door-opener-model-travel-limit-set-up