The opener must be grounded.
(10) Properly secure wire under plastic ties so that wire does not come in contact with
moving parts.
(11) Install the cover. DO NOT run garage door opener at this point.
Always make sure there is a clear path between sensors.
The operator will not run if the sending sensor and receiving sensors are not correctly
aiming each other. If the sensors are aligned correctly, the LEDs in both sensors will
glow.
If the infrared light beam is blocked by obstacles while the door is closing, the door will
stop and reverse to the fully opened position, and the operator light will flash three
minutes.
While the door is opening, it will continue to open if the beam is blocked.