Just read through the thread (since it was an old on brought back up)
How big of an Argon tank do you have is it a little one from harbor Freight like a little 25 or something. Those will empty in no time.I know there is a leak but like Mike said shut off the gas at the tank when not using and also empty the regulator to keep pressure off of it..
Also on aluminum settings , try NOT hooking up the foot pedal and set like this to start.
1 NO PULSE
2 1 second pre and post Flow just to check
3 upslope and down slope to the minumum (all the way to the left)
4 A/C balance at about 9:00 and A/C freq at the 12:00 position.
5 Set on 2T mode ( that will take the foot pedal out of the equasion)
6 Set amps low to start so if you have a scrap of aluminum say .0625 then just set at 50 amps to start. It will take time to puddle at 50 amps in A/C
7 Set Argon flow at where the bottom of the ball is at the 5LPM mark.
Those settings will get you in the ball park on the welder .
Also A/C welding makes a lot more sizzle sound than D/C on steel. It will have a nice sizzle sound whe AC Frequency is set right.
And if you cant find a leak with soapy water then like Mike suggested it might be the solenoid. BUT if there is a leak in the solenoid the ball will want to float even a little
if you are losing that much gas from a big tank.
Take a cup of water (with the welder UNPLUGGED and just put the tip with or without a tungsten but make sure the rear cap is on) in the cup just up to the ceramic nozzel . If it the solenoid is leaking there will be a bubble or a stream right away.
Hope this helps.
Gary
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