Upon arrival for Tune up system was on in cooling and thermostat was satisfied at 70° I asked for homeowner to show me to thermostat and indoor unit and asked if he had filters and container of vinegar, homeowner provided both I started tuneup with checking Delta, system was cooling at an 18° Delta I then checked blower motor which was clean and in good condition I then checked Evaporator coil which was also clean and in good condition Checked and secured any loose electrical connections Lastly I tested drain line, at first I had a small backup but as I poured two gallons down I flushed out the small clog and had no more backups I then installed new filter and put all panels back on and moved to outdoor condenser unit Outside I started with checking disconnect condition and operation, in good condition, flipped disconnect to kill high voltage Removed condenser fan and checked, it's in good condition I cleaned condenser coils from the inside out then rinsed off the sides to clear debr