created customer upon arrival. customer led me to basement for the unit was at. then led me around back to where the condenser was at. I then proceeded to change the filter of the unit. turned on all three thermostats to cooling. went outside saw condenser working / running. pulled the disconnect to shut condenser off. took off the top of the condenser. scooped off every dirt leaves branches and rocks from the condenser. clean condenser with water and chemical. put the condenser back together. open the electrical panel to check for high voltage low voltage and amps. everything seem fine. hooked up my field pieces to the condenser for pressure check, everything was fine. went inside with temperature probes put one in the supply duct and one in the return duct of the unit. delta(temp difference) reached 25°F. put all thermostats back to regular temperature 73° f. before leaving made sure everything was running and plugged in properly