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Our A/C is a ducted model. There is a damper on the front that allows air to flow straight out (open). Or, diverts to the ducts (closed). If I leave the damper open during the day, I don’t have freeze ups.
You should also make sure the filter is clean. The idea is to get good air flow.
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Mark S.
2014 Cougar 318SAB
2015 Silverado 3500HD 6.6L Diesel 4WD CC SB
18K Pullright Hitch
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