Functional description: the purpose of this function is to clean the evaporator.
Entry and exit :Press self clean button to enter this function, then it will display "CL" on the panel of the indoor unit and also on the remote controller. After running 20-30 minutes, this function will exit automatically with the " Pi " sound is heard twice, then the unit return to original state. Under operation process of self clean, press the button repeatedly has no effect and cannot exit, but the power off button and other mode button can make it exit.
How it works: