I found a NEW Hobart 210 MVP welding machine at Tractor Supply with a tag saying "$500.00 wire feed problems".
So I took a gamble that the person that bought it didn't know what he was doing.
I opened the box and looked at the wire feed wheel, there was black dust in 1 of 3 grooves, that groove was for .023 wire, also above the feed wheel it was wired for Flux core wire. The 110v plug and flux core wire where missing and I didn't have 220V yet but had the makings for it so I ordered the 110v plug and---- BINGO it works fine.
I bought a 220V 25' extension cord and a cheep cart for it and I've been using it for a while.
$1100.00 machine for half price