Upon arrival for tune up maintenance, homeowner provided new filter for replacement. She showed me to outdoor package unit. While inspecting unit I got stung by wasps that were in bush next to unit. Went to grab tools and wasp spray, I was able to get rid of wasps and nest. Unit had lots of buildup on condenser coils, began with checking electrical parts and connections. Capacitor in tolerance Compressor saver in good condition Contactor in good condition Blower in good condition Evaporator in Good condition Drain pan in good condition and no clog in small drain line Checked condenser fan, in good condition Cleaned condenser coils from inside out then sprayed off the sides to clear debris Vacuumed water buildup that was under blower fan Vacuumed leafs that were in condenser side Cleaned off all dust and webs in electrical compartment Cleaned and finished up outside and checked Delta inside the home Had a perfect 18° of cooling, reviewed with homeowner and system was left on coo