My low speed fan(drivers side) is on constantly as soon as the car is running. Engine temp will be well below normal and the AC is not on. I've seen people have problems with the fan staying on after the car is off or not working at all but not this. Any ideas where to start hunting for the problem?

 

It may not be normal, but as long as it turns off when you shut your engine & the hi- speed fan works when it reaches the temp it needs to function or when a/c on, then it should be good if not better than how it was designed to be. Others even opt to switch to a lower temp thermostat to keep the engine cooler.