Garage door installation – Garage door openers are equipped with photoelectric sensors, which prevent the door from closing if something is in its way. The sensors will sometimes stop working properly if they are damaged or have not been used for a while. You can purchase and install a replacement kit without purchasing a new opener.
Disconnect the garage door opener from the electrical outlet. Position one of the sensor holders included in the 4-inch replacement kit from the floor to the side of the door, making sure there will be enough space for the safety beam beyond the runway. Fix the bracket to the wall with wooden delays. Do the same with the opposite stand.
With two bolts and wing nuts, loosely attach the sensors on each bracket so that the sensors face each other. Connect the low voltage cable provided in the kit to each sensor and run the cable to the garage door. Attach the cable to the wall with staples with insulation. Strip the ends of the cable in the motor and attach them to the indicated terminals. Check the garage door manual, if necessary. Plug the garage door opener into the outlet. Check to make sure it is not an uninterrupted beam on the sensors.