miller 180 mig welder gas problem

[sluginxlt]

I have a millermatic 180 mig welder that i bought new 6 years ago. It has been a great machine until now, the shielding gas is always flowing when the welder is on. as soon as i turn on the welder you hear the click of the gas solenoid that you usually hear when you pull the trigger. If anybody knows anything about them please help me figure it out.

 

[sluginxlt]

well i went out to the garage and unplugged the wire from the gun to the machine and the gas flow still come on when i turn on the welder. I decided to remove the cover to see whats inside. theres 2 wires running to the gas valve i unplugged the white wire "not knowing what im doing" and then turned the machine on and the gas has stopped so i guess that means the valve is not physically stuck. so now could it be the valve solenoid or is it the board?

 

[gggGary]

Well if it has a valve/solinoid there is probably a relay that powers it that would be my next suspect. Danged tank refill of CO2 was $65.00 today.

 

[rusty rocket]

I think I would take it to your local miller dealer. My dealer hear can diagnose a problem in a matter of minutes.

 

[sluginxlt]

I think I would take it to your local miller dealer. My dealer hear can diagnose a problem in a matter of minutes.

I had that thought to but my dad took his tig welder in and they wanted $165 just to look at it.