Chicago Electric dual mig 97503 will not feed wire.

by Dan
(Pennsylvania)

I bought this welder a few weeks ago the first one I took back because the entire welder was very dented and bent when I took it out of the box. Exchanged it and bought 220 plug hooked it all up and there was no wire feed. Took that one back as well exchanged it now I am in the same boat with the third one. This is making me think I am doing something wrong. I have power to the unit but the motor to feed the wire doesn't even hum. The fan runs and that is about it. I checked the fuse and inner connections and everything seems fine. Anyone have any ideas.