How do I change the remote frequency options in my ceiling fan?
The switches for the fan are either in the lower bell housing or on top of the motor assembly.

Check the lower bell first.  There should be 3 or 4 small screws holding this on, remove them and carefully remove the light assembly.  Look inside the bell to find the RF receiver, the switches are on this (you may have to pull it out to access the switches).

If the RF receiver is not there it is probably on the motor assembly, in which case the fan will have to be taken down.  Even if you have to take the fan down you should not have to disconnect any wiring, there should be a hook on the assembly so you can hang it from the mounting bracket while you adjust the switches.  

Depending on the ceiling clearance you may have to remove the blades, then remove the decorative ring near the ceiling.  Carefully remove the screws that hold the fan to the mounting bracket, you should be able to hang the fan from a hook on the mounting bracket (so you don't have to hold the fan while you work).  Inside this assembly you should see the RF receiver, adjust the switches and re-mount the fan.