I have a 2013 FX4 and within the last several month the A/C blower has been giving me issues. If I change any settings on the A/C the blower will stop working. Once it shuts off, it will try to start again after a minute or so and the will shut off again after 2-3 seconds. If I keep the fan set to a medium setting it will work ok, but if I turn it up the fan will shut off again. Changing the temperature setting does not affect to blower. After doing some research, some of the threads suggested changing the blower motor resister. I did that today and it was not the issue. Everything is working exactly the same. Any suggestions??? Thanks.