Resetting code on old Stanley garage door opener?
Does anyone know how to reset the outside keypad on the old school Stanley garage door openers?
The inside motor unit and the remote both have code wheels which are simple to reset, but the outside keypad which is hard wired to the mains electricity does not. Nor does it have a "learn" button and LED like modern ones. It has only the ten digits and A, B, & C buttons at the bottom.
Any help on this would be appreciated.