OM-212296 Page 35
Trouble
Remedy
Unit displays GRND EROR.
Welding current is present in the safety ground. Isolate welding wire and torch from any grounded
equipment. Turn the unit off for 10 seconds to clear the error message.
Separate welding cables from control cables. (Noise is creating an excessive amount of current in the
safety ground.)
Unit displays COM EROR.
Make sure all connectors are properly plugged into both boards. (Motor board is not communicating to
Display board.)
Notes
