I've got a Clarke Pro 90 mig welder and it has major issues.
It isn't delivering anywhere near enough power, on low it's enough to make the wire glow, on full it kind of melts it, but no penetration.
I did some tests with a multi meter and the continuity and resistance is fine but on full it is reading 20 amps.
Has anyone got any suggestions?
All the ground and connections seem fine!











