hello im new to this site so please be kind ! I hava a SAF 215c mig welder it it was working fine until yesterday then all of a sudden no arc checked the fuses no problems there its feeding the wire ok anyone got any ideas many thanks dave c (osso)
Hello and welcome to the Forum!
If the wire is feeding ( and possibly the gas valve is on as well? ) then you've got mains power, auxiliary power, wire motor speed control, and the PCB has recognised that you have pressed the torch trigger switch. What's missing is input to and/or output from the main welding transformer.
Can you hear or see the main contactor ( heavy-duty relay ) closing when you press the trigger? There should be a healthy clunk.
There may be a manual operating button in the top centre of the contactor. You could try pressing that carefully with an insulated screwdriver whilst squeezing the trigger, and checking for an arc.
Have you check for arc/no arc at all positions of the power selector switch, and also tried it in the various spot timer and stitch modes?