Air conditioning vents not blowing

Hello, if there is no air blowing and the fan speed is set to "high" or another known setting, there is either a problem with your climate control system, fan speed switch, blower motor, relay or fuse. Hands on testing should check the entire circuit, checking for power at the blower motor -- if there is none and should be, check for any blown fuses. And then so on throughout the circuit until you reach the culprit.