How do I troubleshoot when the Deltaweld 452 has no weld output?

Check the following: Place the line disconnect switch in the On position, check and replace fuse F1 if necessary, check and reset any line fuses or circuit breakers, verify proper input power connections, and confirm the jumper link position matches your input voltage. If the power switch pilot light is on and the fan is running, place the Output (Contactor) switch in the appropriate position and check if your wire feeder is properly connected. (Page 23)