Crown vic ac / heater

I have a 09 crown vic p71 and the ac and
heater doesn’t work. The system is
blowing air but it’s not hot or cold. The
controls to select fan speed works and
mode selector works not sure if it’s the
temperature switch or blend door actuator.
Water pump and thermostat are brand new
and I just did a coolant flush and new
coolant. In a few days I’m switching out
the ac controls to see if it’s the switch  but
any ideas would be nice.