We first noticed this happening about a month ago, but it's become more and more of an issue. In the summer, the AC wouldn't want to blow unless we put the system into recirculation mode, where it would work flawlessly. If I took it off recirculation, it would stop blowing air, even when taken off of auto and the fan was maxed out. Despite not blowing air, there are lots of noises coming from the dash. I read in another thread about how the car might be cooling/heating the battery (Inconsistent air conditioning A/C performance with new Model Y) but I don't think that's what is going on because it happens on long trips, and not just when first starting to drive. Now, it's getting colder, and the heat is also doing the same thing. Having said this, it doesn't happen 100% of the time. But it seems to be happening more and more recently. I've already initiated a service appointment, but we live ~2.5 hours from the closest service center and so it might be a while before I can make the trek to get it repaired.
I recorded a video of the issue that I'll post below if links are allowed for new members.
Video of the issue
I recorded a video of the issue that I'll post below if links are allowed for new members.
Video of the issue