Hey there, I have this thermostat too, and it's a very convenient device. Did you order a new one or a used one? If it's used, it's not surprising that the instructions weren't included. The previous owner probably threw them away a long time ago. If it's new, that's strange. Perhaps the manual was lost when it was inspected at the post office. In any case, here is the manual you asked me to find: https://manualmachine.com/hunter/47200/1948442-owners-manual/ . I often use this site and recommend saving it. I also recommend sending the thermostat in for diagnosis right away. It's possible that the seller deceived you and sold you a used or broken thermostat as new.