[fadertoo]

Do you by any chance crack a window or vent the sunroof? Maybe not in March in CO. When I do, I've noticed mine sometimes seems to 'feel' a draft that I don't, and it cranks the heat up. But other times I feel a draft that it doesn't and I have to raise the temp a little to compensate. I haven't yet gotten down pat which window or sunroof vent does what to it. With everything closed, it feels pretty good to me. I run mine set on 70. You might want to try a household thermometer to check yours. At least one member here had to have his ACC module replaced. Said that fixed his issue with temps.