Disconnect Electrical power: Before working on your garage door opener, disconnect the power in the breaker or unplug the unit to stop accidental operation and decrease the risk of harm or electrical shock. If the garage door opener is loud, it could be frustrating and disruptive, particularly in connected garages https://youtu.be/wSkWTAdm-Gg?si=pR5EXdjVuNYjtHN7