My garage door opener has a beam at the base which acts as a safety break to
prevent the door from closing on something. The light diode on the left
side shines onto a rflector on the right, which sends it back to complete a
circuit. The beams have been moved, and I'm assuming they don't form a
complete circuit anymore. I can't see the light so I don't know where the
beam is shining. Problem is, the door now doesn't close.
Any suggestions on re-aligning the beam?
There should be a indicator light that lights up when the beam is complete.
use a 3 inch bicycle reflector as a mobile beam finder starting from a few
feet away and slowly moving to where the real reflector is. make adjustments
as needed. do not use a mirror. unlike a mirror, a bicycle reflector is
designed to refect light back in the direction it came from.
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