It was working great in both heating and cooling mode then after stopping for the night i went to turn it on and got nothing no fan nothing, I checked all of the fuses that I could find and they are all good. New to me 2007 allure 470
Found the issue. In the compartment under the drivers seat one of the spade connectors had come loose
Check the thermostat settings and power, then inspect the HVAC control board and relays—sometimes a failed control module or loose wire can cause a total shutdown even if fuses are good.