A week ago today I bought an eleaf istick50w with a basic tank. I vape kinda heavily but only at 6.5-8 watts and use mostly clear and thin juice. Last night I stared experiencing a burnt hit so I took everything apart to clean it and see if I could clean the coil, thinking that was suffice I reassembled everything and still get a burnt hit. Thinking the coil was just shot I went to the vape shop this morning and got 2 replacement bvc coils and changed it and I'm still getting a burnt hit just not as harsh.
Are you letting the coils soak in juice for a bit, they've changed to cotton so they will burn if they're not well primed.
I don't know about the 50w iSticks but the 20w versions can randomly over power and need re-setting. So try this:
- in watts go to highest power and fire up briefly (just enough to register)
- now to lowest watts and fire up again
- now switch to volts, set at highest voltage and fire up
- now at lowest voltage and fire up
- now go back to watts and put on your usual setting and it should be fine.


