Hello! On my 2011 ranger I have noticed something odd. The middle nob (whatever one that has the cold to hot adjustment in the middle of the 3 on the dash) doesn't seem to work. If I turn it all the way cold it still blows very hot air. My MAX AC setting will activate the AC and blow nice cold air, but anything in between is only hot. I was wondering if there was a way to fix that that anyone knew of?

Additionally, the driver side left vent doesn't seem to blow as good as any of the others. Any ideas what could cause that?

Thank you!