A blank AirTouch screen, or one showing garbled and distorted graphics, is a display-level issue rather than a sign of a problem with your AC unit. In most cases the console’s electronics are fine but something in the connection to the mainboard has come loose.
This kind of fault is usually traced to the cable running between the touchpad and the mainboard, either being loose or developing a fault over time, though it doesn’t always point to a hardware failure.
Send us the code and a photo of the display, and a Ford & Doonan technician will get back to you. Please don't reset the unit before you take the photo.
(08) 9331 8800