The 3 year old was playing with the fan remote and managed to take off the battery cover and scramble the code / frequency switches. It ends up relinking the fan and remote was easier than feared, but not knowing this, I tried to do it the hard way first.
Thinking I needed the get the code off of the fan receiver, I took the fan down. But the receiver had no switches on it. Instead there was a sticker saying to reprogram, remove power from the fan, and within 60 seconds, press the fan off button for 5 seconds. The light will flash to indicate the remote is paired and you are done. I did these steps and it worked as claimed. Note I went to the breaker box and turned off power there to make sure the fan had the power removed.
Posting this in a blog post in-case it helps someone else, and to remind me to not take the fan down the next time the codes get scrambled by our little cutie.