Coil Burnt Issue

If your coil start to have burnt taste within short using time, it may caused by these point:
1. Your vaping is too frequently
2. Vaping setting is improper
3. You didn't prime coil before vaping
4. E-juice is not enough in the core.
5. Defect coils

Suggestions & solutions:
1. Please try to inhale for several puffs without powering-on while using a new core or let the tank sits for about 15 mins.
2. Please prime the coil with low wattage for the first several puffs.