Wire size help

[TripleE]

I have an older Miller Sidekick 90 amp machine that is not welding and I have been troubleshooting to find out what is going on. I am running .030 wire on it and am getting no penetration on my weld, I can literally break the weld off and the metal underneath is basically untouched. Could dropping down to .023 wire make a difference?

[G-ManBart]

I have an older Miller Sidekick 90 amp machine that is not welding and I have been troubleshooting to find out what is going on. I am running .030 wire on it and am getting no penetration on my weld, I can literally break the weld off and the metal underneath is basically untouched. Could dropping down to .023 wire make a difference?

Don't you already have a comprehensive post about this in the Miller section?

https://weldingweb.com/vbb/threads/7...27#post8822327

[Louie1961]

short answer is NO. wire size is not your problem

[Welder Dave]

You got a free welder that doesn't work right. Maybe??? that's the answer to all your problems. I agree with G-ManBart, you already have a thread on this so having another one isn't required.

[Sberry]

Trying a smaller wire couldn't hurt.