When getting a window air conditioning unit ready for summer in Summerlin South, the first step is to clean or change the air filter to guarantee the best airflow possible. After that, clean the condenser coils and the unit's exterior; use a soft brush and vacuum to get all the dust and debris off. Then, make sure the drainage holes are clear so that any condensation that does form has a way to escape. You don't want the space inside the unit filling up with water. Now, safely and securely mount the unit in the window. Finally, make sure the unit runs properly. Test the controls, and check the temperature difference from the inside to the outside of the unit. If it's not cooling, it needs to be serviced.