No issue with the system. Customer has most of the vents closed and no air circulating in the house. Opened all vents and house felt better. Inspected heat pump. Newer system, 2 years old only. Filter is clean, drain line clear. System is located in the laundry room with no drain pan under. Recommend to install a wet switch, to prevent water damage on the floor, in case of drain line get clogged. System is working properly, with no issue.