2015 Ram 2500. AC blower motor keeps shutting off on its own. Alls I have to do to get it running is remove the 40 amp HVAC fuse and reinsert it. I tried a new fuse, same problem so its not the fuse. Problem has progressively gotten worse over the last few months. The blower motor will shut off a dozen times a day. Sometimes if I just keep driving it will kick back on, on its own. Any ideas?

 

I might be mistaken but i don't think that fuse is for the hvac blower specifically but the hvac "control unit", and the unit itself acts like a resetting fuse for the different components could be due to high current draw from a failing blower motor, or could be an issue with the TIPM (or whatever its called now) as a whole, been a few years since ive owned a 4th gen so my thoughts might be off track

another thought next time it quits just tap the motor a few times and see if it comes back, also try cycling the key instead, see if the breaking power circuit is what it takes or actually powering off the unit