My baby is sick! 2001 Expedition EB started acting possessed today. Everything was fine driving to work. On the way home, however, I stopped for gas, turned off the ignition, and the cabin (heater/AC) fan came on high! I tried "rebooting" the truck (restarting, stopping and removing the key) but no change - when I shut off the ignition, the fan came back on high. When the truck is running the climate control works fine, including the off position. After several short drives and test cycles I finally got the fan to turn off about half the time. Sometimes the fan comes on high for a few seconds, then shuts off. In these experiments, I also noticed that the seat heat malfunctions when the fan is malfunctioning. That is, if the seat heat fails to turn on while the truck is running, the fan will fail to turn off when the truck is shut down. As if this wasn't enough, just when I thought I'd had enough for the night, I shut off the ignition and the flasher relay started chattering! Sometimes distinct clicking, sometimes a weak sputtering. I pulled the relay (easier said than done) and ran away. Help... me... please...

 

Were the vents spewing green pea soup into your face? Sounds like you might need a priest.
Give her a couple "the power of christ commands you" and see how she acts.