Hello all, I have a 2009 H3T I bought almost new back in the day, will be in the family forever, now has 150k + miles and has just been an amazing looking and fun truck to play with. A couple of months ago the blower would stop blowing at full capacity unless I played with the dial up and down and then it would suddenly start working again but now it only blows at 1/2 the output volume it should when it’s set at the highest volume. I had the entire system checked, everything is fine, no leaks, plenty of Freon, etc. Has anyone else experienced this or have any suggestions before I take it to a shop? Also if anyone knows a good Hummer shop, (outside of a GM dealer), in the Charlotte, NC area I would love to know who they are. Many thanks in advance!