Chemical/General Cleaning: Technicians are servicing a wall-mounted split-unit air conditioner.
Drainage Vacuuming: A technician is using a wet/dry vacuum (indicated by the black hose and the bucket of dirty water) to clear the internal drainage pipe. This removes slime, mold, and dust buildup that causes water leaks.
System Inspection: The front casing of the indoor unit has been opened to access the filters and cooling coils for cleaning and inspection.
External Pipe Maintenance: A technician is also working on the external piping/conduit near the outdoor area to ensure proper drainage flow.
Japan
