Silver ac maintenance asked about filters and how system cools, customer said system is cooling great. Customer asked about directional placement of filters, and showed customer that it is a downflow system, so the arrows should point downwards in the filter rack. Washed condenser thoroughly, checked dual capacitor. Capacitor reading out of range and with customer approval changed it up for a fresh one. Part is under warranty, but labor is not. Changed 10x20 customer supplied filters. Checked evap coil and blower wheel. Checked drain line and float switch. Checked amp draws inside and out. Checked refrigerant pressures via delta t. System is running well at this time, Amps on the fan side of the condenser are reading on the higher end of the manufacturer range.