I must have an older unit because I just have a doorbell button on the garage wall to open the door. I looked on the ceiling mounted unit and couldn't locate a programming button or hole to insert a pin. I have a problem with one remote and would also like to use the built it opener in my vehicle. I' don't know how to put the ceiling receiver in program mode, any suggestions? My two remotes have three buttons , a minus(-) button a center button and a plus (+) button.
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