The photo eyes do not last forever. Replacements are available from Kleen-Rite (look for Telco). I have seen that they go intermittent before they go dead. Nine times out of ten it's the receiver, not the transmitter. You can check the transmitter with the camera of your cell phone. For some reason the cell phone camera can "see" the infrared light.It was 6 degrees when I got here this morning and both of my doors were open. Once I got things thawed out the cars started lining up but most of the time my entrance door is not closing. If I go out and scrub a little on the photo eyes (the little black buttons) then I can go push the close button and the door will close. I'm pretty tired of doing this as you can imagine. The eyes are very clean but the door is usually not closing. Any suggestions?
Thanks
Unfortunately that is well beyond my electronic capability. I had a 50/50 shot at adjusting the sensitivity the right direction and did that wrong!Somthing you might do is add some switches that will call your alarm company/you if the time or temp says that the door should be closed and they are not. That's what I did.