During a power outage, the garage door will need to be opened manually by disengaging the trolley. In addition, while it may be annoying that your garage door opener does not work, it is very easy to disengage the trolley so you can open the door and get on your way
To disengage the trolley, find the emergency release handle, located on a rope attached to the trolley. Grasp the handle and pull down, snapping the trolley release arm into a vertical position. The door is now ready to manually open or close.
When the power is restored, re-engage the trolley by pulling the emergency release handle toward the garage door opener until the trolley release arm snaps into place in a horizontal position. The trolley will reconnect the next time the door is raised or lowered.
For personal safety, try to make sure the garage door is completely closed before disengaging the trolley. If the door is partially open and the trolley must be disengaged, make sure the doorway is clear of people or obstacles.
An unbalanced door or weak door springs could cause an open door to fall when the trolley is disengaged. Never use the release handle to manually pull the door open or closed.
Warning: Undertaking repairs to garage doors can be hazardous. Use the proper tools and safety equipment noted in the guide and follows all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. A qualified technician from C and M garage Doors should only perform repairs.