i've noticed a slight amount of warm air coming from the vents no matter when i'm driving, but heat works just fine when i turn it on.
A/C still works pretty well, but when it's on, there's kind of a clipping noise that almost sounds like a fan just hitting something as it spins.
Other than that i have no problems with heat or A/C but i'm kind of suspecting it is something of that sort. I wanted to try to get a better sounding video, but it didn't make the sound either time i got in my car today. Weird