I recently had a new garage door installed with a new Liftmaster opener. After a power outage this morning I disengaged the door to open it. Since it was disengaged, I locked it manually with the lock on the side that slides into the rail on the side.
Not knowing this, my wife came home and tried to open it with it still locked. The force from the opener was enough to bend the door in half, bend the support and the opener rail.
Should the opening force be enough to destroy the door and everything attached to it? That just doesn't seem right to me but the installer insists that they did nothing wrong.
Would appreciate any feedback, thanks.
Not knowing this, my wife came home and tried to open it with it still locked. The force from the opener was enough to bend the door in half, bend the support and the opener rail.
Should the opening force be enough to destroy the door and everything attached to it? That just doesn't seem right to me but the installer insists that they did nothing wrong.
Would appreciate any feedback, thanks.
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