Herelink Air Unit Not Powering

Hello Everyone,
We have recently purchased two herelink setup. And for some unknown reason we are unable to power one of the air unit. Can anyone please help us resolve the problem.

Here goes the link to video file showing the exact problem:
https://drive.google.com/file/d/1qr7v-LF8_bk-BgztSerlqsL7MDkmFz1-/view?usp=sharing

Thank you.

Contact your reseller to have it replaced

Thankyou . Yes we have sent it back to him for replacement.