I've been told that if your AC is not cooling, turn it on and listen for the AC clutch to kick in. If you hear it, then you just need an R-134a refill. If not, you've got a deeper issue.
So, I suppose my answer is that it will kick in even with low R-134a.
I just refilled my AC with R-134a, and I remember hearing the clutch kick even when low on refrigerant.
Hope this helps.
So, I suppose my answer is that it will kick in even with low R-134a.
I just refilled my AC with R-134a, and I remember hearing the clutch kick even when low on refrigerant.
Hope this helps.