Miller Electric MSC-2 - Manual (Page 16)

OM-1096 Page 12
5-5. Troubleshooting
Trouble Remedy
Unit does not work; pilot light not on. Check fuse F1. Replace if open (see Section 5-2).
Erratic movement. Check plug and terminal strip connections (see Sections 3-2 and 3-3).
Slide moves in only one direction. Joystick or external device connections are incorrect (see Section 3-3).
Check joystick for proper operation and replace if necessary.
Check external device for proper operation and replace or repair.
Slide stalled and motor hums Remove excessive load from gun mounting plate (see Section 2-3).
Check for part caught in slide or part stopping slide. Clear slide path.