System Maintenance

Ductless mini-split systems do more than just cool or heat your home — they also help maintain indoor air quality. At the heart of this function are the filters, which trap dust, allergens, and other airborne particles. Over time, these filters accumulate dirt, which can reduce efficiency and increase energy costs. Keeping your filters clean can improve air quality and efficiency and even extend the lifespan of your unit.


In addition to regular filter cleaning, it's a good idea to schedule a professional maintenance appointment at least twice a year, in the spring and in the fall.


ļ»æRoutine maintenance includes:

  • Cleaning air filters, blower wheels, inside of the housing unit, and other components that may become dirty or clogged over time;
  • Checking the surrounding area of the outdoor heat pump for accumulated dust and debris;
  • Making sure all units are rodent free; and
  • Inspecting connections and refrigerant lines.


For more information, or to schedule your annual maintenance, please contact us.

This short video (1 min, 33 secs) shows how to remove filters for cleaning.

Exploded view of a white air conditioner unit with removed filters, showing internal components.

Mitsubishi ductless mini-split systems come equipped with air filters that constantly circulate air in the room, instead of through ductwork.

For more information, or to schedule your annual maintenance, please contact us.