Cleaning your air-conditioner coils (that’s the unit that sits outside your home) is…
a task that requires a qualified HVAC technician
something a homeowner can do themselves
not necessary, since the rain water cleans it naturally
Although cleaning your air-conditioner coils is part of the yearly routine maintenance our service technicians perform, the correct answer is "B" - it is something you can do yourself! Just take a garden hose to it! Check out our video post on this, as well as our post on coil cleaners for more information.