To open a garage door with no power, pull the emergency release cord to disconnect the door from the opener. Lift the door manually. Ensure the door is balanced and easy to lift. For heavy doors or persistent issues, seek professional assistance.

Open a garage door without power by pulling the emergency release cord to disconnect it from the opener, then lifting the door manually. Ensure the door is balanced and manageable. If the door is heavy or difficult to lift, consult a professional for assistance. Regular maintenance can also improve manual operation.