Exterior vent cleaning is a straightforward task, but it’s worth doing carefully given the electrical components nearby.
Unplug before cleaning near any vent or electrical area
As a basic safety step, unplug the unit before cleaning around its vents — this removes any risk while working near the compressor and electrical components.
A soft brush or vacuum attachment removes surface dust safely
A soft-bristled brush, or a vacuum cleaner with a brush attachment, effectively removes dust from external vent openings without needing to reach inside the unit at all.
Avoid inserting anything into the vent openings
Don’t push a brush, cloth, or any tool into the vent openings themselves — external dust removal is the safe scope of DIY cleaning; anything requiring access inside the vent housing is beyond what should be attempted without qualified support.
Never use water near the compressor or vents
Unlike cleaning the interior cabinet or shelving, water should never be used on or near the compressor area or vent openings, given the electrical components involved.
What we would not do
Recommend inserting tools into vent openings or using any liquid near the compressor area — external dust removal with a dry brush or vacuum is the safe scope of this task.
Last reviewed 25 August 2026