My ac / heater control fuse under dash by steerin wheel keeps burning out

I have a 1999 jeep grand cherokee laredo and the number 20 fuse under the dash by the steering wheel keeps burning out it controls the ac heater control what could be cauising it i have no ac help

To me this points to a bad compressor, or a short in the system. Hopefully one of the guys that's sharp on electronics will be by shortly.

Also nothing works on the climate control unit the ac button when pushed does not light up does not eaven blow only light that comes on is the def light when button is pushed

Sorry but to me it sounds like there's more going on than just a fuse, and it won't be a quick and easy fix. I wish I had more help for you but I'm not the underdash guy.