when do you know when to replace the coil on RBA?

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rvf79

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when would you know when do you really need to replace the coil? I know when to replace the cotton, is when you get the burnt smell.

but for the coil, how do i know when do i need to replace them?

normally when replacing the cotton, it is required to burn the coil to clean off the residue and clean it on running tap water, but when would it be time to replace the coil? what would be the feeling or smell to say it is time for replacement?
 

SupplyDaddy

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When it no longer works right for you. I use rta's and while I may change my rayon wicks every week or 5 days, most of my coils go on for 2 months or so. Even then, I have to change them mostly due to my own carelessness and bending them too far out of position.

As long as my coils come back out to the silverish color after dry burning and a rinse, and hold the ohms I made them to, I keep using 'em.
 

KineticMind

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When it no longer works right for you. I use RTA's and while I may change my rayon wicks every week or 5 days, most of my coils go on for 2 months or so. Even then, I have to change them mostly due to my own carelessness and bending them too far out of position.

As long as my coils come back out to the silverish color after dry burning and a rinse, and hold the ohms I made them to, I keep using 'em.

Same here. If the ohms are still the same, a few good pulses on a kanthal coil cleans them up nicely enough to keep using.

Sometimes I change more frequently, but mostly to try out new builds, not out of necessity.
 

Firestorm

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As others have stated, I only replace a coil when the resistance has moved higher over time than my desired target. I run the same coils for months and rewick every few days.

I only replace my wick because the coils collect gunk and I need to dry burn them to keep them working efficiently. If your wicks are getting burnt then it seems like you're not setting them up to wick properly.
 
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Two_Bears

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when would you know when do you really need to replace the coil? I know when to replace the cotton, is when you get the burnt smell.

but for the coil, how do i know when do i need to replace them?

normally when replacing the cotton, it is required to burn the coil to clean off the residue and clean it on running tap water, but when would it be time to replace the coil? what would be the feeling or smell to say it is time for replacement?

Replace cotton when it burns or the vape tastes off.

You can rewick the coil

In my RTAs I remove the old wick dry burn the coil and install a fresh wick

My coils last 2 1/2-3 months
 
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DaveP

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Every time I replace a wick I dry burn the coil while the old wick is out. Run a thin stream of water in the sink, dry burn to a cherry red, release the fire button, and dunk it in the water stream. Check for smoothness and a silvery look on the wire. If it looks rusty after dry burning, wind a new one. I usually get a couple of months from a coil and a few days to a week from a cotton wick.
 

93gc40

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Never had a coil fail from use. So I guess I don't know. My coils get changed because I want to try something else or I damage it during rewick. Longest I have kept a coil was 2 weeks if used daily. Have one Kayfun setup with Silica that has had the same wick and coil in it for almost a year, but it isn't used everyday. My Sat22 build is over 6 months old, also not used daily though.
 

Millah

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Honestly, the best rule of thumb to use is the coils appearance. If it no longer looks silver, and instead starts to look dull or rusty looking, then its time to change. Yes, coils can rust, and no you don't want to inhale off of a rusty coil. There's no science to how long that takes. In my experience at least. It all depends on the juice you're using, and how well you've wicked your tank. If your coil builds up a lot of gunk that needs to be burned off, chances are the coil is not going to look clean and shiney anymore. So I usually just make a new coil. Wire is dirt cheap, and it only takes a few minutes to make a new coil. I see no reason to chance it.
 

Two_Bears

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Honestly, the best rule of thumb to use is the coils appearance. If it no longer looks silver, and instead starts to look dull or rusty looking, then its time to change. Yes, coils can rust, and no you don't want to inhale off of a rusty coil. There's no science to how long that takes. In my experience at least. It all depends on the juice you're using, and how well you've wicked your tank. If your coil builds up a lot of gunk that needs to be burned off, chances are the coil is not going to look clean and shiney anymore. So I usually just make a new coil. Wire is dirt cheap, and it only takes a few minutes to make a new coil. I see no reason to chance it.

I usually wait till the resistance goes up about .15-.2 ohm.

I use Kanthal band if you dry burn it to remove the springiness the coil never looks shiny again.
 
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