Yocan Vaping Forum

I've only had the Yocan UNI for 2 days and I cant get it to work. When I turn it on it blinks 3 times and everytime I press the button it blinks 3 times and does not heat up?

Hi @atktd22
Thanks for your post.
As for your UNI blinks 3 times, please check the cartridge connection with the battery, to make sure connected correctly.
Three lights flash 3 times means short-circuit protection.

During the manufacturing process, there can be some tolerance in extrusion on the center pin, and the UNI Mod does not have a spring-loaded center pin on the magnetic 510 adapters. So, when you press the button and get blinking lights, one of two things is happening:

• The cartridge center pin is recessed and not making sufficient contact, the UNI mod can’t load the cartridge correctly, and flash 5 times.
• The cartridge center pin is extruded and getting pushed in, causing a short, the UNI mod flash 3 times.

So, there are two ways to fix UNI Mod flash issues: switch cartridge or loosen the adapter.
Learn more detail on https://www.yocan.com/help-center

Or refer to this video from our fans @got vape:



Others also read:

1. Why does the Yocan UNI mod vape not charging?
2. When should you change the Yocan UNI cartridge?
3. Yocan UNI Box Mod Troubleshooting
4. UNI Box Mod: 5 blinking lights issue

Mine is also doing this. Very frustrating. Any suggestions to troubleshoot the connection or improve it? I've tried isopropyl alcohol. I've also tried two oil cartridges and a concentrate oven both with and without the air flow insert.

@MaddBomber83
Thanks for feedback, 3 times flash means short-circuit protect.
Please check your cart connection with the battery.
Or please take some photos or videos, upload here or send to yocanonline@gmail.com
I will forword it to our UNI engineers.
Have a nice day.

Mine is doing the same thing. Worked great for like a week. Then nothing, tried different carts. As far as I can tell the connection is fine. I loved this UNI for the one week it worked. Guess its time to look for something new.

@dork@88
Thanks for your feedback.
As for your UNI problems, please try to contact the store you bought it from.
I think those guys will help you.

If you still have some problem, please let me know.

Same problem here. It's 2 weeks old and I'm not a heavy smoker- a few puffs a day and it should not need cleaned so often. Starting to look like a defect.

On the contact, I put my cartridges in my pocket, and the electrode collects lint. When it screws in, fuzzies follow.
Just saw NO to the Fuzz.

Mine lasted a total of 4 hours before starting this defect.

you have the cart screwed too tightly to the adapter. loosen it up a bit