Home Run Wiring Configuration

Most new garage door openers have two terminals for the safety sensors.  But with home run wiring you will end up with six individual wires to connect to the opener. Therefore, you will have to either twist the safety sensor wires together (be sure not to criss-cross your wires), or if they are too big to fit in the terminal as a pair, splice in a smaller piece of wire for the final connection.

Older LiftMaster/Chamberlain/Craftsman openers(pictured above), as well as the Linear brand, only have one terminal dedicated to safety sensors.  In this case, there is a “common” terminal (the middle one above), where both the safety sensors AND the wall control wire are connected.

Home Run wiring is easier to troubleshoot than Daisy Chained because you can test each sensor individually — a problem with the wiring on one side cannot affect the other.

In the case of a pre-wired garage, you will know you are dealing with Home Run wiring when there is one wire tail next poking out of the wall next to each sensor and three wires sticking out of the ceiling (one for each sensor plus the wall control wire).