LCD PANEL :
1.The values and messages at the first line of LCD:
IN : xxx : Regulator AC input voltage
OUT : xxx : Regulator AC output voltage
2. The values and messages at the second line of LCD:
Regulator On: It defines that the input voltage is in normal values,no over temperature and no defect or failure
Regulator Wait: When there is an error with input voltage, when there is dangerous high temperature or a electronic board failure,a warning displays and indicates the error.