After having a LiftMaster door opener installed in my new garage/shop, I soon realized that the HomeLink system in our '02 TrailBlazer would not synchronize with the new opener. I researched the pairing issue relating to my new door opener and discovered that I needed to install a bridge (repeater) to update to the current wireless control signal encoding. I ordered it, installed it, paired it, and it works as advertised. Fast ship, great price, and easy install -- pretty much Plug & Play!
Have had previous incidents that my Liftmaster key pad attatched to my Toyota car key pad in my pocket has unknowingly opened my garage door, sometimes overnight. Now I know from upstais in my office just by seeing a little green light that the garage door is closed.
But if there is a red light I just push the button on the monitor to close the door.
Great Product!
GENIE 3850R works very well with my GENIE receiver #315390R2 that I have operating an old Chamberlin opener.
The receiver was not included in the installation instructions but they were the same as the first (A) instructions you sent.
You probably know all this but just in case not I thought I would comment anyway.
Thanks