The answer to 'ductless system maintenance tips' is to perform regular cleaning and inspections of your ductless HVAC system. This includes cleaning the air filters, indoor and outdoor units, and checking the refrigerant levels and connections. It's also important to clear any debris or obstructions around the outdoor unit for proper airflow.
For best results, clean the air filters every 1-3 months and have a professional technician service the system annually. This will help maintain efficiency, extend the system's lifespan, and ensure safe operation.