'07 Impala Air Condition

My air condition in my 2007 Impala 3.9 was working fine since I bought the car. For the last 2 weeks, I haven't been able to get it on. When I push the A/C button, it blinks about 3 times and the button won't turn on. Anyone know anything about this? Please help. Thanks.

That " blinking " light usually means your A/C system needs servicing and is often caused by a " Low Pressure " condition at your A/C compressor . The " low pressure " switch prevents the A/C compressor from activating . Your system might need recharging , could be a bad switch , etc. ! Would be advisable to take to a professional for repair .