Xr15 setup for Arcam avr300 receiver

I recently added an Arcam AV300 receiver.  I was trying to set up my XR15 remote to control the volume with it.  When it comes to the section of the remote pairing routine it has a listing for 

ARCAM receivers but the area where the code to enter is blank and shows no code.  This is true on the first screen where the code should be in a circle and the next page as well.   Where it says “Type in:” there is nothing listed.

is there any way around this or codes to try?