Coil Hot Spots
What Causes Dry or Burnt Taste from an Atomizer and How to Fix It
A common problem faced by vapers is when they start to experience dry scratchy taste developing in their atomizers. This issue is not only caused on atomizers due to aging coils but it also tends to happen on a lot of the brand new atomizers and clearomizers that you may have just purchased.
Now this might be very disappointing for vapers who know why this happens and to get a brand new shiny piece of kit that gives out a terrible vape, even more so for the new vapers who are new to vaping and they might get turned off completely to vaping as they wouldn’t know what a good or bad vape is.
This is a serious issue which we felt should be discussed in detail and with more and more types of kits being sold on the market this is getting worse. Often new vapers are tempted in to buying shiny new stuff that looks nice, and without having a clue on how they actually work. Its potentially a very bad consequence for sellers who do not put much effort in to educating their end users. A new user might come across this situation and get completely turned off to vaping.
What Causes Coil Hot Spots?
Almost all atomizers have a set of coils that burn the eliquid to produce flavour and vapour. They all use some sort of resistance wire – nichrome/kanthal etc wrapped around some wicking material silica/mesh/cotton etc which is responsible for bringing the juice up to the coils. Now often these devices are mass produced and due to human or machine error these coils are not wrapped correctly or not spaced out correctly and that creates a hot spot and resulting in a bad vape.
For non-rebuidable atomizer users: If the tank/atomizer/clearomizer is not rebuildable then you are in bad luck, there is nothing you can do to restore the coil, unless you are able to take it apart and inspect the coils. The problem does not end here if its not a rebuildable – you will have to put it back together and considering how no-rebuildable atomizers are made once the glued components are taken apart its almost impossible to put the pieces back together. We will come to the inspection and repairing part later.
The most popular and common non-rebuildable tanks are CE, CE2, CE3 and CE4 etc.
For rebuildable atomizer users: If you happen to have a rebuildable tank then you can simply unscrew the various parts such as the dripping bit, the tank bits and then get to the atomizer coil to inspect the issue.
The most popular and common rebuildable type tanks are Kanger eVod, Kanger Pro Tank, Kanger T3, Genesis style atomizers, H2, iGo, SMOK Scar, Vision Eternity, Jack the Dripper, etc
How to Inspect the Coil?
In order to make sure whether a hot spot has developed in your coils you can simply take the top bit off and let the atomizer remain screwed on to the battery unit. You can then fire up the device and if you look closely at the coils you should see only a small portion of the coil glowing very bright while the rest of the coil would not glow nicely – this is when you have a hot spot on your coil and you must re-coil. If you have a good coil then usually the coils should glow nicely from middle outwards and all the wraps of the coil should glow nicely. Now if you have a hot spot on your coil then you should move on to the next step of fixing the problem.
How to Fix Coil Hot Spots?
If you have an atomizer such as the eVod, Pro tank etc. bought as a full kit then chances are that you received additional atomizer heads with them. Simply unscrew the existing atomizer head and replace it with a spare head.
If you happen to own a rebuildable atomizer as above being the eVod, Pro Tank, H2, T3 etc. and if you don’t have spare atomizer heads then you can either buy those heads or build the coil yourself – that’s the main reason they are called rebuildable atomizers anyway. All you would need is a bit of resistance wire sold as Nichrome or Kanthal wire and some wicking material being silica rope or cotton wick.
Often a hot spot can be fixed by using a set of tweezers and spacing out the coils evenly and making sure the coils don’t touch the side walls of your atomizer. Once you have done the fixing you can fire up the atomizer again and see if you get a nice and even glow. By firing the atomizer and making it glow red then release the fire button and use the tweezers to squeeze the coil together. If you do this while the coil is still hot you can reset the metal memory to make the coil stay in the shape you set rather than it springing back to its original shape.