AGA-T2 RBA stumped again

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Narkotiq

Senior Member
May 5, 2013
71
38
Shawnee, Oklahoma, USA
My problem seems to be developing hotspots. I've actually begun to develop top and bottom coil hotspots when the wick is wet. When dry, it looks like it glows evenly. Then comes the juice, and then frustration.

I attempted to shift the wick itself, and it seems to shift the hotspots. So is it possible my coil is wrapped to loosely in some places? I've been afraid of over-oxidizing my wire, and it seems to have a bit of springiness in it. I'm thinking there are parts of my coil that aren't quite touching the wick, while the middle coils are tighter on the wick.

Adjusting the section of wire has little effect, but moving the wick around a bit changing the location.

From what I've been reading, I've been a little cautious about choking the wire down on the wick.
 

TattooedSkin

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Jan 16, 2013
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Stubborn hot spots could be caused by your wick not being oxidized enough, your coil might be wrapped to lose and that be the cause as well. The aga-t2 is definitely improved vs the aga-t, but it can still be a bit tricky. If your trying to stay in the middle class of rba the rsst is a great buy. It's very user friendly, affordable and works great!
 

Kanj.nguyen

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Jan 18, 2013
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Princeton, NJ
Hotspots happen because your wick is conducting electricity, so the current gets grounded by the wick instead of the negative screw as it was meant to.

To fix hotspots, we make it so that current doesnt travel through the wick. 2 ways of doing this:
- oxidizing the wick well
- ease up on the pressure of the wire biting into the wick. More pressure = better contact = more conductivity of the wick, which is bad.

Of course mixing and matching is good too. I find that wrapping the coil not too tightly around the wick is better than oxidizing.
 

Narkotiq

Senior Member
May 5, 2013
71
38
Shawnee, Oklahoma, USA
I was able fix my problem. I pulled the wick out and tossed the coil. Used a syringe-tip cap to suck the juice out of the tank. Burned the juice off the wick using a lighter, then proceeded to torch it several times to get it nice and oxidized. Reinserted the wick, instead of wrapping the coil first like I had been. I then secured the wire (after oxidizing) to the negative post first in a counter-clockwise manner, and did a 3/4 wrap clockwise, then pulled the wick slightly to the positive post and secured it counter-clockwise. After adjusting the coils to get rid of two small hotspots, it's glowing perfectly even, no hotspots on the bottom or top coil, positive lead does not glow.

Thank you everyone for the insight and helpful comments!
 
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