Amps won't change

[Mad-Dax]

Any new ideas why you cannot change the amps anymore issue? I had an issue about a year ago with not being able to change the amps...on my Powertig 200LX. I uncoiled the torch lead and Grnd..unhooked rehooked...unplugged torch control plugged and screwed back in...it worked for a few months.....

Well it happened again a few months ago and I still have not been able to get it to work again this time. I did every possible combination of cycling the switches on the front of the machine, checked leads, swapped leads...checked ground...checked power plug wiring...checked breaker. turned machine on and off like 100 times....I also tried the foot pedal no change....The amps are stuck at 12 DC and 26 on AC when I toggle that switch but will not change anymore. The high frequency does work when I press the torch switch and it will strike an arc...but it will not do much more than a puddle the size of a pin head because of the low amps that it seems to be stuck on. I tested the amp POT according to Ray's instructions..sweeps back and forth no hiccups.

I saw a thread where someone was stuck at a high amperage and could not get it to change...was wondering if it was similar..He changed out some resistors and a 4053 chip...

Big questions is......Because it is out of warranty...Do you think the cost for shipping to get it repaired is worth it....or just buying a new machine and scrapping this one? ...only used about 5 125cu. ft. of argon bottles worth of welding through it...so I didn't use it very much.

[Krichey]

What did you figure out? I have a 2010 year model 200DX that shows correct amps but as soon as pull trigger it goes down to 18-20 amps. I even switched it over to stick to see if itd weld and it arcs and amps go down and dont come back up. No current at all after initial spark

[performance]

That's what it is supposed to do. I bet you have it in 4T.

[Mad-Dax]

What did you figure out? I have a 2010 year model 200DX that shows correct amps but as soon as pull trigger it goes down to 18-20 amps. I even switched it over to stick to see if itd weld and it arcs and amps go down and dont come back up. No current at all after initial spark

Still sitting there broken...I tried tech support a few months back for over 2 hours on the phone trying to trace back and test components but to no avail. I'll have to either send it back or find someone local who knows more about electronics....or buy a new machine! Of course I want a new machine but what do I do with the old one then...I can't throw away stuff that might be able to be fixed ...LOL