Did spring maintenance. Visual checks good, filter regularly changed, I cleaned condenser coils. Checked amperages on units and capacitance on capacitors. Noticed mold buildup and recommended UV lights. Notices start kit on unit 3 but not one 1 and 2, recommended installation of those. Also noticed secondary PVC drain line routing issues on all 3 units, customer said there was a leak coming through bathroom ceiling. Will have to check PVC lines all the way down and repair.