Hi Harlan, The owners manual is in the BAC library of technical manuals. To get there you have to be a member which you are. Start in the Forum page and scroll down to "Private BAC members only" and click on it. Scroll down to "Link to Coach assist" scroll to HPPT:// beaveramb.org/coachassist-members-only. and click on it. Scroll down Heating and A/C Systems and you will find the manual. Fred
