Limit options are managed by two small dials or screws to the motor unit, generally labeled “Up” Make gradual adjustments and exam frequently to avoid more than-correcting. Continue till the door opens and closes efficiently with no overshooting or reversing. To reset the limit switch, Track down the adjustment screws https://youtu.be/wSkWTAdm-Gg?si=pR5EXdjVuNYjtHN7