Yes, that's more or less it (at least the first two steps), the key bit is you draw hot air in until vaping actually starts before going to step 3, the hit. Sounds to me like that never happened? "begin drawing hot air over the herb, then a continuous (sp) steady inhale" is not a correct definition of step 2. The correct one includes a test (which it seems has never been passed?). At that point you should go back again to step 1 until you make vapor, then and only then go for the hit.
FWIW, I think you're still trying to rush through step 2 with the expected results. I don't think you've done it yet, sounds like you never completed step 2? You need more heat. Still.
Your call to send it back, of course, but I hope you weren't serious about selling it to some innocent if you think it might be defective?
Good luck.
OF
No, I couldn't in good conscience sell this one. Id get it repaired/replaced, take the loss on shipping, then sell new unit. Last resort.
I have done almost identically to what you described. Drawing air to heat it up, tasting the herb a bit, then warming more before starting with a slow steady inhale, occasionally puffing or letting air in through the nose.
Trust me when I say Ive tried multiple heat up times, draw speeds, pre heats , "pre draws", loosening/tightening of pieces, etc.
I'm just bummed out over it, and hoping to make it right for myself somehow.
No response from TV or seller yet, but 24 hrs hasn't even passed.