i have a liftmaster /chamberlen formula 1 . 1/2 hp . part # 41A5483-4B .
manf.1/04
the door and light bulb operate normally with the remotes , but when the door is open and someone comes inside or leaves the garage the light bulb does not come on i do not hear the relay click and the learn led flashes randomly ( not the same number of flashes every time).
the motion sensors are glowing green and amber and the green one goes out when i block their line of sight.
manf.1/04
the door and light bulb operate normally with the remotes , but when the door is open and someone comes inside or leaves the garage the light bulb does not come on i do not hear the relay click and the learn led flashes randomly ( not the same number of flashes every time).
the motion sensors are glowing green and amber and the green one goes out when i block their line of sight.
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