Hey guys, I have a 2018 freightliner cascadia. For some reason the bunk blower motor will turn it self on high for no reason. Going down the road and my wife is in the back or me, and both front and rear blowers will be set to low or in the middle and the rear blower will just slowly turn up to high. Sometime it does it all the sudden, other time you can hear it start to turn up. WTF is going on? Anyone have any ideas or experience with this?