Dash AC Issue

campindave wrote:
I have an Itasca Sunova on the Ford V10 chassis. The last time I took it out, I noticed that the dash AC was blowing room temp air. I live in Texas so thank goodness for the roof ACs. I checked the controls and it was set on AC and cold. To test, I turned the thermostat to warm and got no temperature change. No matter what I have it set at, it just blows like it's on vent. I've fixed most things on the RV myself and would like to continue that, but I don't know much how the chassis AC works. Could use some pointer please.

Thanks