AC Button will not turn off

So my AC button will not turn off. Hot, cold, whatever, the button stays lit up and cold air blows out no matter the temp I select. Is there any way to fix this, or do I just replace the climate control unit?
Thanks in advance for any help, it's starting to get cold here and I need to fix this ASAP.

 

Check the blend doors air mix control servo and mode control servo

 

I bought a Climate Control Unit off ebay. Will report back if it works or not.

 

Ok, so I bought the wrong unit and the seller is swapping it for the right one. If I swap out the unit, think that will fix my problem?

 

Maybe this sounds dumb... but once you moved the knob off of MAX A/C, you have pushed the A/C button again, right?