Hello and thank you for reading my post.

I have a miller ssw-2040-att spot welder which is 440 volts, 45 amps, single phase kva 20. I had my electrician run it through a transformer. I have it hooked up to a watermate 1A which is 115 volts, 5.5 amps and single phase as well. The spot welder turns on, and the everything seems to work except no weld is produced. I have turned the amperage all the way up and no change. I read another post which I think had a similar issue. Could it simply be the tips need to be changed? is there something else I should be considering?

Thanks in advance.