BlackSheep
Well-known member
My AC unit did the same thing a few weeks ago. I live in Arizona and it was mid 90's outside and i was pulling my RV up the mountains. Suddenly the cabin started getting warmer and warmer so i turned the AC fan up higher and next thing i realized we were at Fan Speed 7 but hardly anything was coming out. I verified the air was being directed to the front vents and nothing. I tried switching the air flow to feet or defrost and back to front vents and nothing. I could hear the blower blowing full steam but no air was coming out of ANY vent. Even pulling over and turning the truck off and on it did nothing. Once we got to our destination and the truck sat off for a few hours, everything went back to normal. The problem hasn't happened again. Hopefully it never happens again or a TSB comes out or someone finds the problem. You are not alone with this problem.
There is a TSB for Poor A/C Performance (22-2089). Not sure if this is the concern, but I'll attach it for awareness.
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