Ron,
I have became convinced over the years that exasperation is a factor that is built in to these cars. And many that I have bought new from dealers. Work on one problem until you get it solved and really feel good for a day at most and at least one other small thing will show up. I haven't had the fan problem yet, but I did run a separate lead through a toggle switch so I can manually turn it on and off just in case the thermostat ever fails. Now that I have been fool enough to say this, watch it stop working within the next week.
Ron