Disconnect Electricity: Right before engaged on your garage door opener, disconnect the power for the breaker or unplug the unit to circumvent accidental Procedure and cut down the risk of harm or electrical shock. Right after critical temperature shifts or mechanical repairs, re-Examine the garage door opener travel limit settings. https://youtu.be/wSkWTAdm-Gg?si=pR5EXdjVuNYjtHN7