2008 evo. The heater controls do nothing, the fan is constantly running in low. The has lights on the controls work but the a/c button and recirculate also do nothing. Also the in dash screen shows no functions for the A/C. Any help is greatly appreciated.

 

Me? I would do a quick swap out with another car's HVAC control panel. Easy/ takes maybe 10 minutes. Then you know if it is the control panel box.