air conditioner switch on 2000 Volkswagen Beetle

the switch to my fan seems to be broken. my air conditioner is not working now. the switch turns but does make any air come out. the button below that for the air goes in but doesn't always turn the air on. Sme times it goes on but as i am driving just goes off.

I'm wondering if your blower motor resistor is at fault? It could be preventing the fan from operating.