Re: Climate control suddenly blows cold air with heat on
Yeah, take it in and have the blower box checked. There may be a blockage or some kind of debris that is keeping the flap from opening/closing. I get leaves into my blower sometimes (I don't know how) and I've also had snow come inside.... But it's probably not anything more than the cold/hot flap thingy getting caught up.
When I had this problem, I was blowing cold on one side and hot on the other, if that helps. That's why I figured the diverting flap was stuck, and wasn't moving when I changed the A/C controls.
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