05 Cherokee heater unit problems!
 

Hey guys!

I have a problem with my 05 Grand Cherokee. A while after I got it the 3 controls on the heater/AC unit started fading from the right side to the left until they quit working. I got a new unit and my boyfriend put it in for me. It has been ok for a few weeks, but now it is starting it all over again. Any advice or tips? Please.

Is there anyone who can help me?