Thanks for earlier responses. The title "Garage door" seems to have
been used a lot so I'm trying to retitle to avoid excessively long
The hardwired button works if held in. The yellow light on the back
(1/2HP Craftsman) flashes 2 every few seconds. The sensors have no
lights. I disconnect the green light sensors and wired it directly to
the back of the unit. If working correctly, I should see a light but
since not lined up, it should flash. I see no light. I'm convinced
either the main box has a logic board failure of the sensors are bad.
Is there anyway to determine where the problem might lie without
trial/error? Also, if parts of the unit need to be replaced, would it
be better just to replace all? The unit is approx. 5 years old.