I borrowed a friends legend aead 200 le to do some repairs on an excavator bucket. While running some rather large hard facing rods the arc became very weak, and started stuttering.
So I switched to an 1/8 rod same result.
And I could have sworn I heard something snap when it went out, but hard to tell under the helmet.
I was definitely leaning too hard on the welder when this happened,
I need to get this fixed.Where to look first?

Serial # JJ479736