Arrived to do a maintenance on a York system horizontal in the attic. I cleaned and flushed the drain line with water and cleaner. I checked the electrical system. I changed the 16x20x4 filter per plan. I changed the large pan treatment per plan. I cleaned the evaporator coils with cleaner and water. I cleaned the condenser coils with cleaner and water. The system is working great at this time. Thanks for using air now for all your air conditioning needs. Arrived to do a maintenance on a York system horizontal in the attic. I cleaned and flushed the drain line with water and cleaner. I checked the electrical system. I changed the 16x20x4 filter per plan. I changed the large pan treatment per plan. I cleaned the evaporator coils with cleaner and water. I cleaned the condenser coils with cleaner and water. The system is working great at this time. Thanks for using air now for all your air conditioning needs.