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AC/DC Tig Fault
athoirs - 20/6/12 at 03:03 PM

Just passing on some info/personal experience.

Have one of those Chinese Greenbird AC/DC 200 amp Tigs which I bought with the group buy on here. Been working fine but recently have been finding the HF start has been intermittently staying on.

I traced the fault to the AC/DC switch on the front panel being open circuit- replaced switch and now working fine.

Andy

FASTdan - 20/6/12 at 03:07 PM

What symptoms suggest the HF is staying on? Just curious as mine has a funny start up thing sometimes - whereby it arcs up but crackles/buzzes for several seconds before the arc stabilizes and you can start welding....

Wondering if mine is the same problem....

athoirs - 20/6/12 at 03:17 PM

The thing is I thought it was the HF start causing the problem - but it was staying in AC (off and on!) - also might be worth cleaning /checking the spark gap on your machine if its giving you problems ( I cannt remember what the gap should be)

Andy

froggy - 20/6/12 at 05:16 PM

my giant 200 has been playing up too but seems to have resolved itself .there was a firm specializing in repairing chinese tigs but i cant remember the name

Peteff - 20/6/12 at 10:13 PM

quote:
Originally posted by froggy
my giant 200 has been playing up too but seems to have resolved itself .there was a firm specializing in repairing chinese tigs but i cant remember the name


Plasmapart do repairs as well as selling machines I think.

FASTdan - 21/6/12 at 08:20 AM

quote:
Originally posted by froggy
my giant 200 has been playing up too but seems to have resolved itself .there was a firm specializing in repairing chinese tigs but i cant remember the name


Cut40 is the bloke who offers the repair service and UK back-up.

Will have a check of my switches :-)