System #1 – Main Floor The system is operating within manufacturer specifications. However, the blower wheel has accumulated a layer of dust buildup. If left unaddressed, this could negatively impact the system’s performance. The system also lacks biological growth prevention, which can affect air quality and contribute to sludge in the drain line. The outdoor unit has no issues at this time. System #2 – Second Floor The system is operating well overall, but the blower wheel has debris buildup that will affect performance similar to system #1 if not addressed. It also has no biological growth prevention in place, which impacts air quality and can reduce system function. The outdoor unit has no issues to note.