I have a Harbor Breeze Merrimack ceiling fan model #0080443. I need to change the coding on the fan because the remote is controlling other fans in the house. I can not find the codes in the fan but I see where there at on the remote. What can I do?

Most common is the canopy at the ceiling, 2 or 3 screws may remove cover and fan still hung, Match codes.
Have code determined before starting.