I have a 02 Blazer that sat for 7 years. I got it running finally. When I first got it started a few months ago my ac/heat/defrost control panel was working. For some reason it does absolutely nothing now. What are some ideas on what would cause that? It’s like there is no power going to it. Like I said it was working a while ago.

 

Hello,you can start by inspecting the fuses on the left of the dashboard

 

I’ve checked all fuses and relays also changed blower resistor it still does nothing at all

 

I’m also having this problem. Did you find a solution? No blown fuses but zero activity or response from the panel.