As air conditioning systems are generally overused in many homes in Australia especially in the summer, That is also time where most difficulties come up. Wipe the surface area – Wipe with clean up cloth soaked in soap drinking water the area on the air conditioning device Specifically the window https://rfe.blob.core.windows.net/acsydney/window-wall-air-conditioner/ACG-Ducted-Air-Conditioning-Sydney.html