EATC blower problem
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EATC blower problem
Hey all new here. I've searched high and low and can't find an answer. 2010 V10 F250 155k. When on auto the system won't control the fan speed. If I turn it down to 60 fan speed will go up some. If I turn it up to 90 it won't change at all. The only time it will change is if it's on 60. This goes for both sides in dual or single mode. In dual, if I have them both at 60 and change one side at all both sides stop blowing. I ran both EATC self tests and no faults were shown. I can manually change the speed without issue. All speeds work. Any help appreciated.
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