New member here, and I have a Miller 211 auto set welder. It's maybe a year old, and now while welding it just shuts off. The temp light is not on, I don't believe I'm touching the tip of the welder to my work piece, but it just shuts off. I can turn it back on right away then continue welding, but it shouldn't do this, and it, of course, disrupts my bead.

Any thoughts as to why it would do this?