You should also do some regular maintenance on your cooling system. For central air conditioners, it’s a good idea to hire a professional service to give your system a check-up before the hot months begin. This usually involves a thorough cleaning of the air conditioning unit and a refill of the coolant if needed.
Monthly, you should also check the unit for blockages and remove any vegetation growing around it that could interfere with its proper functioning. You should also clean or change the filter and check the condensate drain at least monthly.
For window units, you should clean or replace the filter at least monthly, bi-weekly during the hottest months. You should also check the condensate drain to make sure that all moisture is draining properly.