Click from ac when calling for heat, Dometic

[cvcman]

Ok I have a Dometic stat. I have the diff set at 2 degs, it was at 1 but then I was getting multiple clicks
I have the fan set on “auto”
Furnace calls for heat I hear one click from the ac unit inside
Furnace comes on, takes to temp. I hear one click from the ac and it shuts down
I don’t remember hearing this.. must be a relay ???