With each other, these ascertain the entire range of movement, often called the garage door opener travel limit configurations. Under no circumstances pressure or tamper With all the limit swap or its wiring. Constantly make adjustments with the power disconnected. Use just the maker-accepted strategies for altering travel limits. A https://youtu.be/wSkWTAdm-Gg?si=pR5EXdjVuNYjtHN7