What is a chemical clean?
A chemical clean is a process where you disassemble all the parts inside the air condition (compressor, filter, condenser, etc.) and soak them in a chemical solution. The internal pipes of the air conditioner are also flushed with a chemical solution. This helps to remove sticky debris and acids from the air conditioning parts.
It is the process where the internal components of your air-con get washed down with chemicals. First, your unit would be taken apart, exposing the evaporator coils, condenser and air filters. The parts are then placed in a chemical solution which would help remove any dirt particles, and corrosive acid stuck onto the pieces.
The chemical wash could also be used to wash down the drainage pipes to ensure that any algae or gunk is wholly eroded and washed out. Have a look here for more on the benefit of chemical cleaning vs standard aircon cleaning, click here.