Allister garage door opener model ARD
we have a allister garage door opener model ARD the receiver was not connected. we don't know how to connect (Red, Black, white) wires to opener
Did you just purchase a home? If so, chances are it was not working before the wires were disconnected.
Allister changed their name to Allstar, then the company was bought out by Linear.
There is an illustration in the owners manual. You can find downloadable manuals (free) at Allstar Garage Door Opener Owners Manuals