Performed ac maintenance on 2 systems. One split gas in attic. That furnace is 2017 xc80 with a 3 year old coil and a 2017 xv18 condenser. Cooling great. Installed new filter. The back room heat pump is 2010. Coil has rust but no signs of refrigerant leak today. Filter 20x20x4 needs to be replaced asap. Condenser has 35+5 mfd capacitor within its tolerance and a start assist kit is installed. Cooling great.