Dungs MPA22 - Service Mode Navigation: Electronic Gas Firing (Continued); Viewing Characteristic Points P2 to P5

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Error messages
Code Meaning
63H ......................................................Internal device fault
64H ......................................................Internal device fault
65H ......................................................Internal device fault
67H ......................................................Internal device fault
68H ......................................................Air servomotor, incorrect acknowledgement (check cable and
plug, servomotor and air damper mechanism)
69H ......................................................Gas servomotor, incorrect acknowledgement (check cable and
plug, servomotor and gas damper mechanism)
6AH......................................................Air servomotor position out of tolerance (check cable and plug,
servomotor and air damper mechanism)
6BH......................................................Gas servomotor position out of tolerance (check cable and plug,
servomotor and gas damper mechanism)
6CH .....................................................Internal device fault
6DH .....................................................Internal device fault
6EH......................................................Servomotors have been interchanged or connected incorrectly
6FH ......................................................Error in burner recognition / zero reference run (incorrect coding
plug, check cable and plug)
70H ......................................................Internal device fault
71H ......................................................Internal device fault
73H ......................................................Internal device fault
74H ......................................................Internal device fault
75H ......................................................Internal device fault
76H ......................................................Internal device fault
77H ......................................................Internal device fault
78H ......................................................Internal device fault
79H ......................................................Internal device fault