The answer to 'how to clean AC' is to regularly clean the outdoor condenser unit and indoor air handler. This helps maintain efficiency and extend the life of your HVAC system. Start by turning off power to the unit, then use a garden hose to spray the condenser coils to remove dirt, leaves, and debris. Carefully vacuum or wipe down the air handler and replace the air filter every 1-3 months during peak usage.
It's also important to have your HVAC system professionally serviced once a year to ensure all components are working properly and to identify any issues before they become major problems.