Check the liquid level
Make sure the pod or tank contains enough liquid and follow the manufacturer filling instructions. Do not continue using a dry pod or tank.
Allow a new coil to saturate
When the manufacturer requires it, allow time for liquid to reach a newly installed coil before use. Follow the timing and preparation instructions supplied with the product.
Review the device setting
If the device has adjustable power, keep it within the range printed on the compatible coil or in the manufacturer guidance.
Inspect the coil or pod
Persistent burnt flavour can indicate a worn or damaged component. Replace it with the exact compatible part rather than forcing continued use.