The answer to 'how to maintain ductless system' is to regularly clean the air filters, outdoor unit, and indoor unit. This helps ensure efficient operation and extends the system's lifespan. Proper maintenance also improves indoor air quality and reduces energy costs.
Start by cleaning the air filters every 1-3 months, or as needed based on usage and dust buildup. Gently rinse the filters with water and allow them to fully dry before reinstalling. Next, use a soft brush or cloth to wipe down the outdoor unit, removing any debris or vegetation that has accumulated around it. Finally, use a damp cloth to clean the indoor unit, wiping down the vents, coils, and housing. It's best to have a professional HVAC technician service the system annually to check refrigerant levels, inspect components, and identify any potential issues.