### MP-516 Front panel decode fail

A receiving or transmitting information error occurred at the front panel. The keypad entry returns to non-zero even though the entry is cleared. The cables to the front panel may not be connected properly.

Refer to MP Error Codes for additional information.

What you should do

1. Make sure the cables to the front panel are connected properly.

2. If the error reoccurs, call your Giddings & Lewis service representative.