If so, please read this thread.
And here is a question from one of Yocan dab pen user.
I bought a yocan falcon. Brought it home and opened it and i cant draw from it. I can suck til my face turns blue and nothing comes out. Im extremely disappointed with this product. Ive been a long time yocan buyer/user this makes my 5th different piece and im wondering if maybe im doing something wrong.
Which tip are you installed?
How time does the indicator light flash?
The Yocan Falcon flash blue indicator means it's setting the medium voltage level.
Learn more refer to the Yocan falcon user manual page.