If the ceramic around the heater is getting hot to the touch, it's working fine most likely (the heater). I think a misaligned heater would give you vapor and a hot spot.
That points towards the nut not being set properly as my first guess. When you seat the nut, mine can rock back and forth just a little bit, but being off just a little can really change the experience. There were photos earlier in the thread pointing at this and what to look for. Some days I can drop in in and it falls into place on its own, others, I have to play for a second to seat it.
The other thing that caught me by surprise at the beginning, is how large of a draw it took to get things moving. It's a time vs strength of draw balance, the longer the draw, the less force it needs to produce vapor, and vice versa.
*Edited to add link to pictures*
check out this post, the first couple of pics show what I would consider an exaggerated situation for the sake of explanation.
Just some visuals for those who are wondering how to properly line up the bowl.
...and some pic'ies...
*In case anyone is interested, the background was one of my kilts, the tartan is "Auld Scotland". I hope a dick shaped vape under a kilt doesn't get lost on anyone. LMFAO
For some reason, when editing the above post, it wouldn't let me add the quoted post.....