Hi guys, new to the forum!

So earlier today when I left the house, the fan speed for the AC was stuck on high, so I browsed the forums, found the the resistor was probably the culprit. I popped into Oreillys got a new one (RU1266) and in 10 mins, the new one was in. I fired up the truck and now its the opposite, the high fan speed not working, but all the others are. Climate control works, until it tries to gets up to max AC, then the fan shuts down all together. Any ideas?? Its a 2009 F150 Lariat SuperCrew with the dual zone climate control
Thanks!!!