I have a mitech combi tig AC/DC ,plasma and MMA unit.
The Unit works fine, it's the plasma torch that have given me the most grief.
The copper core in the plasma torch cable became detached, lots of arcing but no plasma flame.
One of the switch wires for the plasma torch broke.
All this stuff is easy to fix (soldering iron and crip tool) but it is a pain.
I originally made contact with Mitech when the plasma flame would not ignite. They diagnosed the fault via e-mails and pictures, advising how to test each part. Eventually told me it was the plasma torch. Took it apart and they were right, so i repaired it myself.
Generally i was impressed with the service considering they are on the other side of the world, took a week to diagnose problem due to time difference's. They were prepared to send new boards if required free of charge.
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