On arrival system was at setpoint temperature of 73. The 2nd floor heat pump system is from 2004, which is 18 years old. System is operable at this time. Air filter was dirty so it was replaced on site. Many of the flex runs are ripped and not in great condition at this time. A system maintenance or tune-up would not have any effect in this case to make the system work more efficient or correct air flow problems. Chud would recommend upgrading the system and having power air duct cleaning done as well. See opportunity.