Clunking of Ac unit whenever on AC or on windshield.

[Athlon3263]

Whenever I put the ac on or put the fan on windshield, there is a clunk then radiator fan switches on twice every two minutes. 2019 Yaris.


Here- https://youtube.com/shorts/HPDG_bzM6Ok
It does it twice in the video.

Any ideas on how to diagnose.

Thanks!