yep, stinger connection has to be seated properly, happened when I started using my new MIG .... hold it next to your ear, very easy to hear the gas flowing or not, and easier than getting yer nozzle wet
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics