Neither my heater nor my A/C will turn on in my 04 lincoln ls v8

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When I start my vehicle neither heat nor A/C will work. I can turn the heater on and there's nothing. I dont even hear the blower kick in. I have checked the fuses and they are good. The heater did work at one time but I havent had to use it recently. The A/C doesn't turn on as well. I can increase and decrease the blower speed according to the dash reading but there's no airflow. Thanks.