I picked up the car from my daughter Saturday, and brought it home (100 miles or so). The heater blower worked fine all the way home, and worked fine again today. I guess I'll have to wait until it acts up again.
On the way home, the turn signals worked at times, and not at times. I did figure out that when they do not work, I can reach under the dash, and wiggle the fuse box, and they will eventually start working.
I believe the blower fan and the turn signal are two different issues, that just happened to occur at the same time.