Two issues have come up with my TB 302. For quite awhile the machine has a mind of its own when in the auto idle mode; with no leads or load it will jump to high rpm for various amounts of time anywhere from 30 seconds to maybe 2 minutes. It has never cut out when welding but has switched to low idle as soon as I was off arc. The other issue showed up last Friday; when I started the machine the volt/amp readout numbers were erratic
. Regardless of mode and where the dial was they would not settle down. I was able to weld and had a stable arc but it took a little bit of winging it until I got the amps set for what I was doing. Anyone have any ideas as to what is wrong with this thing?


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