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Discussion Starter · #1 ·
Hello,

I'm new to the forum and I'm looking for some insights into an odd problem. I've got a 2011 Fusion with the 4 cylinder and manual AC. The AC started blowing hot (not just not blowing cold, but only blowing heated air). I can hear my blend door humming as I change the temperature, so the blend door is working. The only thing that works is this quirky advice I've seen on several forums suggested by several people: keep the lights and fog lights on and the AC will stay cold. It sounds weird, but I can confirm that this trick does work. My AC blows consistently cold only as long as the lights are on. My question is: does anyone have an explanation for this and will replacing the AC control module address this odd electrical cross-over?

Thanks for the space to pose the question.
 

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Never heard of this but going to check it out. I’d of suspected a faulty blend door motor. Just because they hum does not mean it’s working correctly.


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