Why am I not getting heat in my car nor cool air when needed? on 1999 Mercury Sable

When I set the control for heat, nothing comes out. When I set it for cool air, again nothing.

Asked by for the 1999 Mercury Sable
is the blower working or its working but it has no temp?
I guess the blower is not working. When I turn the switch, I don't hear a blower.
ck fuses then pwr at blower motor and resister