A very unique problem with short circuit

[MajestyXD]

Hi,

Not to be long-winded, so I have three mods, a Vaporesso Luxe 2, a GeekVape Legend 2 and a Vandy Vape Gaur-21. I also have three tanks, a GeekVape Zeus Sub-Ohm in grey, a GeekVape Zeus Sub-Ohm in black and a Wotofo Profile RDTA. Now my problem is with the Vandy Vape Gaur-21 and the black Zeus. Of the three tanks, the black Zeus consistently gives me an error that says "Short circuit" when on the Gaur-21. It works perfectly with all the other 2 tanks on the Gaur-21 and the black Zeus works fine on the other 2 mods. Now with the other 2 mods all 3 tanks work without any problems. What could be the problem with my black Zeus or my Gaur-21 that these two can't work together but both work with everything else? The black Zeus and Gaur-21 are a couple of days old. I have already tried changing the coil.

Simplification:
Gaur-21 + Zeus in Black: Not working ("Short circuit")
Gaur-21 + Zeus in Gray: Working
Gaur-21 + Profile RDTA: Working

Legend 2 + Zeus in Black: Working
Legend 2 + Zeus in Gray: Working
Legend 2 + Profile RDTA: Working

Luxe 2 + Zeus in Black: Working
Luxe 2 + Zeus in Gray: Working
Luxe 2 + Profile RDTA: Working

Also, last info, I have discovered that I only get this error when the tank is fully screwed onto the mod, if I unscrew it a bit it doesn't come up and it works perfectly fine, but then it wobbles and it doesn't hold tightly of course. Two days ago it had the short circuit problem, yesterday I used it all day without any problems and today gives short circuit again.

Also one more info, I read on some forum to try without the coil in the tank. I don't know if this should be even work but I tried it, it just gave back "Check atomizer".

Latest update: I changed the coild 4 times, used two 0.2ohm coils and one 0.4 ohm coil. All three gave short circuit so I put another 0.2ohm coil in it because why not, so far I have no problem withit. But I'm still open for suggestions.

Thanks very much in advance for any help!

 

[Fidola13]

Hmmmm,m I’m sorry I don’t have any suggestions for you but hopefully someone will come along with some ideas.

 

[smacuser]

Perhap try using a 510 heat sink.

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[englishmick]

I've had similar problems in the past. It was a long time ago though and I don't remember the details. It happened with some very old gear lost in the mists of time.

I vaguely remember one mod had a really wide positive pin. If I screwed the tank in all the way the 510 pin in the tank was pushed back into the tank and the negative ring in the tank touched the big pos pin in the mod. But if I left the tank loose it worked but wobbled like you said. That might explain why a short circuit only happened for you with one combination of tank and mod. On a different mod the pos pin in the mod might be smaller and go up inside the neg ring of the tank without touching it.

I would check all the mods and tanks. Look at the size of the pos on the mods. See whether the pos in the mods are spring loaded and go down when they are pressed. Maybe they have been pushed down and aren't springing back up properly, or they are the type that doesn't have any movement. The pos pin in most tanks are fixed but some have a bit of movement which would allow them to be pushed up inside the neg ring leaving the ring free to touch the pos in the mod. Some mods have very deep 510 connections where you have to push the tank in a long way, others aren't so deep. Same with tanks, some have long 510's and others are short. I have one tank with a short 510 that will only make a connection with one mod that has a particularly shallow 510 hole, a Colossal I think.

I wish I could remember more but I'm pretty sure the problems I had back then involved the 510 connection. At the time someone suggested I use a heat sink, like @smacuser said. You could also get some tank washers. They sell them in different thicknesses, they are non-conductive and fit between the tank and mod so the tank won't wobble if it isn't screwed in all the way. I think pins and 510's weren't as precisely made back in the old days.

 

[Flavored]

You're on the right track. Either the positive pin on the tank 510 is getting pushed up or the same on the mod is getting pushed down too far. I can't tell from the picture of the tank if that center/positive pin is adjustable up and down, but if it is, adjust it up a bit. Since you have 2 of them, you can compare to see if the pin on the defective one is down lower than the other, is "looser," or any other differences.
The thing to do is put the tank on the mod that is giving the error, only screw it in until it makes contact with the spring loaded positive pin. Click the fire button to see if it's in error. If not, turn it in a bit and try again, repeating until you get the error.

 

[MajestyXD]

Thanks for the ideas! I tried a few of them, probably I'll buy a Heat Sink too and see if that works, till then I'll use my Luxe II mod for the tank.

I tried to switch the two zeus' and the gray one seems to work perfectly while the black does not. The black only works if I unscrew it a little from the mod. I compared the 2 Zeus and it seems the gray 510 is slightly longer than the black, maybe that causes the problem. So, I tried a different approach and I put the gray base to the black one to see if it works together but this way I still get the error. Again, I don't get the error when I use fully the gray one. I can attach pictures if that helps solve this problem or a short video where I change the tanks and the mods to see it.

 

[englishmick]

I never got a heat sink but years ago I checked them out. I wasn't interested in the heat dispersal properties, I was interested in being able to address the 510 length problem. Presumably the same for you.

For that you need one with adjustable 510. On the one I wanted you were able to adjust the 510 on both ends, but they were rare and I never found one in stock. Some of them you could adjust the 510 on just one end, some you couldn't adjust at all. Sometimes they were called 510 to 510 connectors rather than heat sinks. I gave up and went with just figuring out which tanks worked with which mods.

Sounds like you are making progress. Good luck. Do let us know how it works out.

 

[tj99959]

I use A7 RDA's, and I can produce your problem anytime I want by simply screwing the positive pin in.
It's also why I have no hybrid mechanical mods. (they go BOOM with that problem)