welder/welding

and also that the wheel that propels the wire is actually moving the wire consistently. The wheel can be confusing as its marked 0.23 or 0.24 for the OPPOSITE side. Just make sure that if you are running 0.23/24 that you are using the smaller groove.

All this may seem like a lot to check at first but once you have done it three times its "the usual" checklist.
AND I have forgotten. Aren't the wheels different for flux vs solid wire? Check destructions, make sure of the setup and parts use.