The user interface on this appliance is complex and contains layers of menus and settings.
If you would like information how the user interface works click here.
If you would like information how to access the installer mode and menus click here.
This appliance has a large range of fault / information codes (in excess of 100).
They also fall into different types of fault mode, some prevent operation, some provide information and some do not display automatically and have to be searched for.
If you would like more information on the various types of fault / information code click here.