Gee,

Call Everlast immediately, if you're still within the 30-day, 100% satisfaction guarantee period, and ask to upgrade to the 255EXT. They'll send you a UPS sticker or just have UPS pick up the old unit for you.

That's what I did, within the 30-day period, even while a PT 185 was enroute to me. And Everlast redirected the shipment back to their warehouse. I just then sent an addition reasonable payment for an upgraded unit.

And, you probably won't hurt Everlast too bad, since it sounds like you may not have even used your 250EX yet. So, maybe they can still sell the old unit as new or returned stock.

The Everlast warrantee is real, as I discovered for myself, in a couple of ways.

But, yeah, it's easy to under-buy a TIG welding unit.

So, don't wait. They'll honor the 30-day warrantee period, and you'll be an absolutely satisfied customer, like I was and still am.