My climate control has started acting strange. It worked fine all summer, but the first time I needed heat it came on but would not regulate. Even with the temp down arround 60 it was still blowing hard and hot. I can turn the AC on Max and it will blow cool but still does not regulate. I turned the temp as high as it would go, then started bringing it down until I got to 70, I left it there for a few minutes and it started changing to cool, but just as it seemed to be working, it changed over to heat and, well you get the picture. Can anyone help?