The answer to 'how to maintain mini split' is to regularly clean the air filters, outdoor unit, and indoor unit. This helps ensure the system runs efficiently and extends its lifespan. It's also important to schedule annual professional maintenance to catch any issues early.
For DIY maintenance, start by turning off power to the unit and removing the air filters. Rinse the filters under running water to remove dust and debris, then let them fully dry before reinstalling. Next, use a soft brush or cloth to wipe down the indoor and outdoor unit coils, removing any buildup. Finally, hose down the outdoor unit to clear away leaves, grass, and other obstructions around the unit.