Video · Ductless Mini Splits
Mini Split Maintenance: Indoor Filters and the Outdoor Unit
Mini split maintenance comes down to clean filters in every indoor head, a clear outdoor unit, and a professional cleaning and check once a year. Skip it and the system loses capacity and starts to smell musty.
Job footageSwiftPro
- Topic
- Ductless Mini Splits
- Length
- 0:31
- Posted
- September 28, 2026
- Shot by
- The SwiftPro crew, Northern Virginia
What you’re seeing in this video
A SwiftPro tech on a ladder lifts the front cover of an indoor mini split unit mounted high on the wall near the ceiling, the panel that hides the washable filters and the coil.
Outside, another tech in a camo hoodie works on the outdoor unit's control board with his tools set on top of the cabinet, while a third works up under the eaves of the house. The numbered tips on screen keep it simple: clean the filters, keep the outdoor unit clear, and schedule regular professional maintenance.
Why it matters in your house
- Indoor mini split filters clog faster than you'd think. Pop the front cover and rinse them every month or two in heavy use; a clogged filter cuts airflow and comfort.
- Keep two feet clear around the outdoor unit, and brush off leaves and snow so the coil can breathe. Ice that keeps building up on it in winter is worth a call.
- A pro cleaning reaches what the filter can't: the coil and the blower wheel inside the head, where dust and moisture build up into a smell.
How do you clean a mini split?
Homeowners can handle the filters: turn the unit off, lift the front panel, slide the mesh filters out, rinse, dry and put them back. The coil and the barrel-shaped blower wheel need a pro with a cleaning bag and coil cleaner, because the water has to be caught and the electronics kept dry. Once a year is right for most homes.
Want it done at your place? See Ductless Mini Splits at SwiftPro or call (703) 997-9757.
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