Problems Using Prebuilt Coils with Subtank Mini RBA

[JustWondering1]

I've been trying to learn to use prebuilt coils on my Subtank Mini RBA with mixed success. I want to learn to build from scratch, but I decided I'd learn how to use the prebuilts first. I've got one coil that has lasted for more than a week, but the others work great at first, and then the amount of vapor they produce drops off sharply after 24 - 48 hours in use. I'm not a cloud chaser by means. I rarely vape above 14 W and I use high resistance coils and juice with a good amount of PG. Still, you need a certain amount of vapor to make a satisfying vape. I am also frequently getting a message on my mod that there's "no atomizer found."

What am I doing wrong, please?

 

[Two_Bears]

I've been trying to learn to use prebuilt coils on my Subtank Mini RBA with mixed success. I want to learn to build from scratch, but I decided I'd learn how to use the prebuilts first. I've got one coil that has lasted for more than a week, but the others work great at first, and then the amount of vapor they produce drops off sharply after 24 - 48 hours in use. I'm not a cloud chaser by means. I rarely vape above 14 W and I use high resistance coils and juice with a good amount of PG. Still, you need a certain amount of vapor to make a satisfying vape. I am also frequently getting a message on my mod that there's "no atomizer found."

What am I doing wrong, please?

Sounds like the coil is not making proper contact

You have to change wicks every 2-3 days. You don't have to toss tge coils.

Pull the wick gently. Dry burn Kanthal, Nichrome, or Stainless coils.

Don't dry burn Nickel or Titanium.

 

[LX1X]

Make sure it's not touching any other place besides where it screws in.

What ohms are the coils?

I have mine @ 1.5ohms at 10w.. it produce plenty of cloud .. been two weeks now and I just replaced the cotton on it yesterday after dry burning the gunk off the coil.

 

[JustWondering1]

Make sure it's not touching any other place besides where it screws in.

What ohms are the coils?

I have mine @ 1.5ohms at 10w.. it produce plenty of cloud .. been two weeks now and I just replaced the cotton on it yesterday after dry burning the gunk off the coil.

I'm not sure about what resistance these coils are, but I know they are higher than 1.0 resistance. I bought them from FastTech and it doesn't say what resistance they are on the label.

 

[JustWondering1]

Sounds like the coil is not making proper contact

You have to change wicks every 2-3 days. You don't have to toss tge coils.

Pull the wick gently. Dry burn Kanthal, Nichrome, or Stainless coils.

Don't dry burn Nickel or Titanium.

Thank you!

I had no idea the wick needed to be changed so often! Thank you!! I removed the wick on one last night, did the dry burn and rewicked.

How can I make sure the coil is making good contact?

 

[LX1X]

I'm not sure about what resistance these coils are, but I know they are higher than 1.0 resistance. I bought them from FastTech and it doesn't say what resistance they are on the label.

What device you using? Check if it does have option to check resistance.

 

[LX1X]

Thank you!

I had no idea the wick needed to be changed so often! Thank you!! I removed the wick on one last night, did the dry burn and rewicked.

How can I make sure the coil is making good contact?

Check if it heat (turns orange) evenly.. if there is "hot spot".


Changing the wick depends on usage.. the cotton on mine was like new but the coil gunk up pretty good and blocked the air hole.

 

[Two_Bears]

Thank you!

I had no idea the wick needed to be changed so often! Thank you!! I removed the wick on one last night, did the dry burn and rewicked.

How can I make sure the coil is making good contact?

Just make sure tge RBA is screwed into tge base and tge screws in tge RBA deck are right. Don't put a LOT of torque on tge threads
Turn everything till it stops.

 

[Two_Bears]

Thank you!

I had no idea the wick needed to be changed so often! Thank you!! I removed the wick on one last night, did the dry burn and rewicked.

How can I make sure the coil is making good contact?

If you use Rayon you can go longer periods between wicking

 

[JustWondering1]

What device you using? Check if it does have option to check resistance.

I just figured out how to check the resistance on the screen. I never noticed this before. The screen on my Eleaf Pico says it's a 2.04 resistance and on my EVIC VTwo Mini it says the resistance is 1.85.

 

[JustWondering1]

If you use Rayon you can go longer periods between wicking

I can't wait to try the rayon. I've been reading about it. I've got some Japanese organic cotton that I am trying to use up right now, but I've already found the right rayon on the Sally's Beauty Supply site.

 

[JustWondering1]

Check if it heat (turns orange) evenly.. if there is "hot spot".


Changing the wick depends on usage.. the cotton on mine was like new but the coil gunk up pretty good and blocked the air hole.

Okay. Good. Thanks!! Isn't it supposed to turn orange from the center out to the edges of the coil?

 

[JustWondering1]

Based on what you two are telling me, should I:

Wait util the vapor production falls off again, then remove the wick, check to see that the leads are making good contact, dry burn, check for hot spots, rewick and vape away?

Am I leaving anything out?

Thank you very much!!

 

[JustWondering1]

Just make sure tge RBA is screwed into tge base and tge screws in tge RBA deck are right. Don't put a LOT of torque on tge threads
Turn everything till it stops.

Thank you very much for this good advice!

 

[LX1X]

Okay. Good. Thanks!! Isn't it supposed to turn orange from the center out to the edges of the coil?

Yes..that's the ideal burn.

Based on what you two are telling me, should I:

Wait util the vapor production falls off again, then remove the wick, check to see that the leads are making good contact, dry burn, check for hot spots, rewick and vape away?

Am I leaving anything out?

Thank you very much!!

Here's the calc on your coil

Might want to lower the wattage or resistance. My 2cents.

 

[JustWondering1]

Yes..that's the ideal burn.




Here's the calc on your coil

Might want to lower the wattage or resistance. My 2cents.

I'll definitely lower the wattage. I've never seen that chart before! Thank you very much for the great advice!!

 

[LX1X]

I'll definitely lower the wattage. I've never seen that chart before! Thank you very much for the great advice!!

Vapers tools is free.. atleast last time I downloaded it on my android..


Evic two.. just googled.. if it's on battery mode.. the highest resistance should go no more than 1ohms.

If it's plugged in on USB power.. then 3ohms is max.. prolly why you getting error message.

 

[JustWondering1]

Evic two.. just googled.. if it's on battery mode.. the highest resistance should go no more than 1ohms.

If it's plugged in on USB power.. then 3ohms is max.. prolly why you getting error message.

I've got a replaceable battery in the EVIC VTwo. I had no idea there was a ceiling on what my resistance should be. I thought that was only relevant for low ohms. So I should make sure my resistance is no greater than 1.0 ohms?

 

[LX1X]

I've got a replaceable battery in the EVIC VTwo. I had no idea there was a ceiling on what my resistance should be. I thought that was only relevant for low ohms. So I should make sure my resistance is no greater than 1.0 ohms?

eVic VTwo - Joyetech

That's how I read it.. depending on which mode it is on.

If it's using single 18650 battery.. it's draining it fast at 5v.

 

[puffon]

In VW mode, resistance range is 1.0-3.5ohm
eVic VTwo Mini - Joyetech

oops wrong mod
0.15-3.5ohm for VW/BYPASS mode
for evic VTwo

Your 1.85 coil should be in the range