[jfitz0121]

Hello, I am having a problem with my ac/heater in my blazer. I unplugged the battery and after plugging it back in I was driving and my car started switching from hot to cold over and over back and forth. I can switch it to defrost and floor and all the different vents but then after a couple more trips it now stays on heat. I think either the actuator door has stopped working or the control on the inside is broken. It has the computer controlled climate thermostat in it, not the regular it has a auto setting etc.. What should I do first? Could something shorted out when plugged it back up. It worked fine before I unplugged battery..

Thanks for any help...

I just wanted to add there is nothing wrong with the ac compressor etc its fine you can here it kick on and its been checked it actually kicks on still when I put the ac on from the inside. When it was switching from hot to cold it wasnt just like ac then a little warmer you can hear the difference of air flow and it was like full blown hot as it gets opened up all the way! Even with the switch set to off while driving you can still feel a little heat coming out also..