I know this topic has been beaten to death, but I can't seem to find a solution for this. I have a Kanger Subtank mini set up on an MVP v2 and ran 50/50 juice with the 1.2 ohm coil on it at 12w. It was great to begin with, but after a day and a half I started to get a burnt taste out of it, to the point where it burned my throat to inhale. I thought I maybe got a dud coil and replaced it with another 1.2 ohm coil and this time it went in a day. Has anyone else experienced such poor life span with their occ coils? And were you able to figure out a fix for it? I'm dumbfounded when I read about all these other people running their set up at 20w with no problems and here I am getting burnt hits at 12w. I'm almost ready to throw this tank out the window. Suggestions anyone?
Burnt Subtank occ coils
- Thread starter jd5fm
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Why are you running it at such low power? You're at the very bottom of the designed operating range of the coil. Your burnt taste is probably because much of the liquid in the wicks isn't being converted to vapor and is just turning into a syrup-like goo that is gumming up the wicks.
According to Kanger the operating range for the 1.2ohm coil is 12W to 25W. Optimal performance would be in the 18-20 watt range.
According to Kanger the operating range for the 1.2ohm coil is 12W to 25W. Optimal performance would be in the 18-20 watt range.
I'm a newb too and also have problems with the Subtank mini. When I first got it, it was the perfect tank for me... Until last week when I was getting dry hits and my throat started feeling it.. I tried it on the Kanger Kbox and a iStick 30w, same.
But, I drilled out the RBA head, 2 holes about the same size as the Sub ohm heads. I wick the cotton through the coil and to the holes in the chimney. It hits better, but it is not perfect. (I drilled them above the 2 small notches/juice holes. Hit the location with a center punch, then put it in a vice with wood on each side to drill a pilot hole, then a larger drill bit to open it up) I saw someone else do this modification...
I just built a Goblin and it's hitting perfect, so I'm leaving the experiment with the Kanger tank for next week...
But, I drilled out the RBA head, 2 holes about the same size as the Sub ohm heads. I wick the cotton through the coil and to the holes in the chimney. It hits better, but it is not perfect. (I drilled them above the 2 small notches/juice holes. Hit the location with a center punch, then put it in a vice with wood on each side to drill a pilot hole, then a larger drill bit to open it up) I saw someone else do this modification...
I just built a Goblin and it's hitting perfect, so I'm leaving the experiment with the Kanger tank for next week...
I agree with Completely Average. This could very well be the case. I have almost the exact same setup (MVP 20W + Subtank Nano 1.2Ω) and I run it very successfully at 20W. I'm right around 1 week of use with this coil and it's still going strong.
I'll give it a go at 18w with my next coil and see how it goes. I just figured the 12w I was running it at was vaporizing the liquid too quick and in turn burning the cotton. Never stopped to think that the wick was gumming up and restricting the juice flowing through the wick. Thanks! I'll be sure to post the outcome.
This is a relief to hear, as I was really on the verge of tossing the tank if it was going to run through coils that quickly. My pockets aren't built for that ! Quick question, what ratio is the liquid you're using and about how much do you go through in a day?
Sure! I'm currently vaping a local B&M Delaware Vapor's house liquids. Their website states that all of their house liquids are a 60pg/40vg blend. I go through about 3-6 ml (1-2 tanks) per day (of 3mg/ml nic) depending on what I'm doing. I commute 120 miles round-trip on the Interstate and pretty much chain vape the entire time plus I vape until I go to bed.
Hey jd5fm -
I had the same problem with my nautilus (and Atlantis), and I just encountered it with the subtank plus too. My issue was the juice I was running, I think lol. I started with really sweet and often dark liquids, and initially high nic to boot. The sweet and dark liquids seem to gunk the coils really fast- I was getting 2 to 4 days max on a 1.6 ohm aspire coil. This is what got me into dripping, because I wasn't willing to pay for coils like that.
With the new 1.2 occ coils in the plus tank, with a 70-30 clear liquid, at 3 mg , and 16-19 watts I can go well over a week. I was really surprised how the juice effects the longevity and pleasure of a coils life
Now's the perfect time to start building!!
I had the same problem with my nautilus (and Atlantis), and I just encountered it with the subtank plus too. My issue was the juice I was running, I think lol. I started with really sweet and often dark liquids, and initially high nic to boot. The sweet and dark liquids seem to gunk the coils really fast- I was getting 2 to 4 days max on a 1.6 ohm aspire coil. This is what got me into dripping, because I wasn't willing to pay for coils like that.
With the new 1.2 occ coils in the plus tank, with a 70-30 clear liquid, at 3 mg , and 16-19 watts I can go well over a week. I was really surprised how the juice effects the longevity and pleasure of a coils life
Now's the perfect time to start building!!
Thanks! That's about the same amount I vape, only at 50/50. You've given me hope to know the coil can last a week under those circumstances. Happy vaping!
No prob. Also, like Resurrectionist said, how dark your juice is will matter. Darker juices can easily gunk up coils, especially if left sitting for a long time. I have to add that the juices I've been running through my Subtank since I got it are clear or mostly clear. I've also been told these coils could last up to 2 weeks depending on all of these factors. Most of it is personal preference though. As for wattage, don't worry about your coil until you are pushing 25W+. I'm just stuck at 20W cause of my mod
Thanks for the info! Now I'm definitely going to try a higher wattage setting. Can't wait to find out if that was the problem. Hope this'll end my Subtank woes!
I'm having the same issue -- running 1.2 ohm coils, several different juices from 50/50 up to 70vg, around 16-17 watts. Most coils last me about 2 days, sometimes a little more or less, but I've never had one last more than 3 days.
Everyone keeps saying build your own, or rewick them, but I can't. So I've gotta find a way to make these work or I'm looking at spending more $$ on another tank.
For now, turning up to 18 watts to see if that helps.
Everyone keeps saying build your own, or rewick them, but I can't. So I've gotta find a way to make these work or I'm looking at spending more $$ on another tank.
For now, turning up to 18 watts to see if that helps.
Hmmm... all my juices are sweet, some more than others. But nearly all of them are clear or nearly clear. I have wondered about that, but my husband vapes sweet juices in his too, and doesn't have nearly as much trouble as I do. He also runs higher wattage. I just start getting a bit of a scorched taste at around 20-22 watts (depending on the juice) -- so that's why I went to 1.2 coils and turned the wattage down. Dang it.
At this point, I'd be happy if I could get 3 days out of mine. Hopefully the wattage setting will help. I use clear liquids as well, so gunking shouldn't be a big issue. I've rewicked a few coils already, to try and extend the life of my coils, only to end up with the same 1 day result. If the wattage was my problem, then the re wicking will save me big time $$$!
I also have a mini and suffered the same issue at first. Also I prime my wick by adding 3-5 drops before I put the thing together. Like others have said, don't run wattage too low, also personally speaking I've used the 0.5 coil heads with more success. Another thing like others have said, 70vg should be your limit with the ratio.
I sometimes run 80vg juice but what I have to do is force the juice in by taking hard drags without pressing the fire button. What that does is it forces the chamber to fill with juice by creating negative pressure, I find the first hit after I do that is most flavorful. The only downside to running 80 VG juice and higher is that while it will wick, it takes a while between hits, especially if you don't take those "primer hits" that force the liquid into the chamber.
The subtank I think is the best bang for your buck in my book, unless you got a batch of dud coils, you should really give the .5 ohm coils a shot in any case, the flavor delivery and warmth of vape is exceptional and borderline dripper status once you breach 20 or 30 watts.
Tl;dr don't forget to add like 5 drops of juice before installing and try to stay under 70vg juice(which you are). And also take dry hits without firing to force juice up into the wick chamber.
I sometimes run 80vg juice but what I have to do is force the juice in by taking hard drags without pressing the fire button. What that does is it forces the chamber to fill with juice by creating negative pressure, I find the first hit after I do that is most flavorful. The only downside to running 80 VG juice and higher is that while it will wick, it takes a while between hits, especially if you don't take those "primer hits" that force the liquid into the chamber.
The subtank I think is the best bang for your buck in my book, unless you got a batch of dud coils, you should really give the .5 ohm coils a shot in any case, the flavor delivery and warmth of vape is exceptional and borderline dripper status once you breach 20 or 30 watts.
Tl;dr don't forget to add like 5 drops of juice before installing and try to stay under 70vg juice(which you are). And also take dry hits without firing to force juice up into the wick chamber.
Here's my take on the issue. It is a problem with wicking. I've been rebuilding and rewicking the OCC coils for a few months now and never had a dry hit......until........ I started getting lazy and just cutting the wicks a few mm's long (sort of T3 style) rather than pushing the wicks back into the holes.
Started having major problems with burnt hits. Now when I rewick, I push that wick pretty far in. Kind of like Rip Trippers (on youtube) "pancake wicking" method. So far so good. No dry hits and no flooding. I'm using MAXVG juice.
Started having major problems with burnt hits. Now when I rewick, I push that wick pretty far in. Kind of like Rip Trippers (on youtube) "pancake wicking" method. So far so good. No dry hits and no flooding. I'm using MAXVG juice.
I just got my subtank mini on tuesday. I used it for a day and a half, and I was less than impressed with that tank. I use 80vg liquid and those tiny wicking holes just don't cut it. I primed the coils, let them sit for 15 min. I just can't get a good taste out of that tank. Taste is either burnt if I take longer than a few second hit, or its really cottony or just dry. I added a couple drops of water to try and thin the juice, still no good. I think this is the first tank I regret buying.
Well... higher wattages might be the answer.
I was on Day 2 with a 1.2 ohm stock coil... was losing flavor and starting to wick slower. Got my new Delta 2 in the mail, so I loaded it up and put it on my istick to check it out - it needs at least 20w. I ended up vaping nicely at around 24-25 watts.
Later in the evening the whistling of the delta started getting on my nerves so I swapped it back to the mini, but forgot to turn the wattage down. I noticed my flavor coming back! That's when I realized I had left the wattage turned up. I've been toying with higher wattages and now running around 23 watts - better wicking, better flavor. And today will be DAY 4 on this coil!!
I guess my previous experience of getting a scorched taste at higher wattage may have been burning juice gunk off the coil?? And if you fight past that, it's all good?
I'm still not 100% convinced, but the fact that I had started noticing slower wicking and losing flavor on DAY 2, but turning up the wattage has gotten me to DAY 4 and all seems to be going well... seems to indicate that higher wattage is the answer.
I was on Day 2 with a 1.2 ohm stock coil... was losing flavor and starting to wick slower. Got my new Delta 2 in the mail, so I loaded it up and put it on my istick to check it out - it needs at least 20w. I ended up vaping nicely at around 24-25 watts.
Later in the evening the whistling of the delta started getting on my nerves so I swapped it back to the mini, but forgot to turn the wattage down. I noticed my flavor coming back! That's when I realized I had left the wattage turned up. I've been toying with higher wattages and now running around 23 watts - better wicking, better flavor. And today will be DAY 4 on this coil!!
I guess my previous experience of getting a scorched taste at higher wattage may have been burning juice gunk off the coil?? And if you fight past that, it's all good?
I'm still not 100% convinced, but the fact that I had started noticing slower wicking and losing flavor on DAY 2, but turning up the wattage has gotten me to DAY 4 and all seems to be going well... seems to indicate that higher wattage is the answer.
I'm with you here. Once I figured out how to rebuild on the factory OCCs, I have not had an issue with burnt hits. With the premade coils, I'd always have to do what TKS mentioned above and "prime" the coil by covering the air intake and pulling on it a couple of time. Eventually, the juice would seem to flow properly. It seems the JOC inside the coilhead is really tightly fitted. You could try, very carefully, taking a thumb tack/push pin and gently prod the cotton around the juice holes. Best to go at an angle to avoid the coil inside.
I've also run into the gunked coils as Completely Average mentioned above. Once it is gunked there's not much to do if you can't take it apart, pull the wick and dry burn the coil.
I like to run 3mm parallel coils in the factory OCCs, with Cotton Bacon v2. The hit is amazing!
Hope those who can't rebuild are able to figure out the best method to fix. I know it can be frustrating having to replace these things after 2 - 3 days of use. It's why I had to learn to rebuild them. I haven't even tried to build on the rba yet. For some reason I like rebuilding the factory coil heads.
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