A8_ : No Current H_Z_

To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.

Check fuse on the AMZ that the error element is connected to.
Check that electrical connector on the heated hose is plugged into the AMZ.
Check continuity of pins C and D on electrical connector at AMZ end of heated element. See heated element manual for impedance measurements. Replace hose if readings are too high.