Examine weather conditions stripping: Thick or harmed temperature stripping can avert restricted closure; trim or switch as needed. 1. Track down the limit adjustment screws: These are often found to the facet or back with the opener motor device. This manual gives a comprehensive overview of altering the limit switch https://youtu.be/wSkWTAdm-Gg?si=pR5EXdjVuNYjtHN7