The servo off button is stuck. The button may have been pressed when the system was turned on.
For more information, see "DCC Error Codes".
What you should do:
To clear the error, power the MP down.
Power the MP back up.
Check the servo off button to see if it is open.
Check the connections between the control panel located at the top of the MP console and the servo chassis, and between the servo chassis and DCC board. Make sure all the connections are secure.
If the error reoccurs, contact your Giddings & Lewis service representative.