dna 75c weird cold resistance and overheating on the board

[cloudzey]

Hello guys!

 

I bought once again a new mod, a viscious ant eris dna 75c 18650 version 😃 I heard this mods have good quality.. The cold resistance reading was very weird from the start, it was reading 0.34 ohm instead of 0.24 as on two other mods for this build. I still tried to use it, and the mod got very very hot in a short time. Kinda like a short?   I turned it off and took the battery out, which was only warm. I never had this behaviour before. I would say the heat source was internal on the board side and more at the top part, where the 510 connector is. Is this a known issue? Also the resistance reading was going down while firing instead of going up as on the other two mods. Like usually the cold resistance is 0.24 and when I fire and reach the desired temp it's about 0.27-0.28 but with this mod it started at 0.34 and was goind down to like 0.31. Very weird for me. I couldn't find something with a fast search. I thought I ask first here before I contact the shop where I ordered it..

 

Thanks in advance for any help!!

[Wayneo]

2 hours ago, cloudzey said:

Is this a known issue?

NO. What atomizer would that be?

Can you do an escribe 'Device Monitor' screenshot while firing with only Power, Power Set, Cold Ohms, Live Ohms enabled

[cloudzey]

vor 20 Stunden schrieb Wayneo:

NO. What atomizer would that be?

Can you do an escribe 'Device Monitor' screenshot while firing with only Power, Power Set, Cold Ohms, Live Ohms enabled

Like this?

I set the power at 20 Watts with temperature control, but the temperature control doesn't work so it just goes full power the whole time. The board temperature was going up even at this low power?

[Wayneo]

What atty is that? 
Have you tried a different one on that mod?

[cloudzey]

vor 11 Stunden schrieb Wayneo:

What atty is that? 
Have you tried a different one on that mod?

I use dry herb vapes that are called bakx from lamart. I have different ones and all work the same way. I switched them up on this mod but it doesn't work right. For example on a thelem solo dna100c they work without an issue.

The dna 75c eris has something inside ( a big resistance?, that's why the cold resistance is mucher higher than it should be from the "atty" alone?) and this created the heat.. This is my theory after observation but I have no idea how this could happen.. Do you understand the problem? Because I have to describe it to the place I purchased it too.. Or is it with that information still unsure if it's the mod itself that causes the issue?

[Wayneo]

Yes, I understand the problem, but in my opinion you should focus on the board temp primarily. Afterwards we'll look at resistance.

Plug in the 75C mod (nothing attached to the mod)
How much does the board temp rise just sitting there and not being used?
Note down temp after 2 minutes and 20 minutes after being plugged in.

Leave mod and escribe running. Attach Bakx. 
How much does the board temp rise just sitting there and not being used?
Note down temp now and 20 minutes after being plugged in.

Report back those 4 temps like below , and battery description.

75C Nothing attached
2 minutes     (temp here)                         20 minutes       (temp here)

75C bak attached 
2 minutes     (temp here)                         20 minutes       (temp here)