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B440 code


Nailhed66

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Driving my Reatta today and it’s 90 degrees outside, coolish air is blowing furiously out of the dash vents but the air isn’t really cold . No low refrigerant code or message, just the B440 air mix door code.  Any recommendations for troubleshooting this issue ? 

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Never mind, I just found this in the How To guide. Thanks Reatta Owners Journal !

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Update: problem solved. It turns out that the blend door was sticking and with a bit of wiggling the arm back and forth, I was able to get it to the Max Cool position where it will stay for the summer. That How To Guide here was so helpful. Thanks again ROJ

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