to give you top tips for central air conditioning maintenance. Air Conditioning Efficiency BasicsFor best air conditioning efficiency, it's important that all three sides of your air conditioning condenser unit are debris.  You should remove any children's toys, vegetation, or any yard waste from around the unit so that it has good airflow.  It is also important that your air conditioning condenser unit is stable.  It should be level and set on a concrete base for proper drainage from rainwater. Cleaning Your Air Conditioning UnitTo open up your access panel on the air conditioning unit, you'll need a simple socket set.  Take a soft-bristle brush and gently brush out any dirt and debris from the coils all along the outside of the unit.  You can take a vacuum along the inside corners and get rid of any more debris.  Change your air filter twice during the cooling season.  Be sure to get the right sized filter for your air conditioning unit. Caring for Your AC UnitFor longevity of your air conditioning unit, take time to cover it up for the winter to keep out ice and debris from your condenser coils.