Why the door is open by it self , after power on again?
SOURCE: Automatic Doorman model 455 learn button location?
The button should be on the back of the motor unit. You may have to remove a light lens to find it.
SOURCE: installed two new springs on
Does it make a noise? Did it run before you changed the springs? Did you replace springs on opener or on the door? What adjustment screws are you looking for? Do you think they went out of adjustment when you changed the springs?
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