Are we talking about the same REC device? I believe there are several. Mine is this one:Something is wrong.....
15 "Red blinks" should be CANBUS baud rate error according to the ABMS Canbus manual.
CANF? valid settings are unsigned integer value 100, 125, 200, 250, 500 or 1000
So it is odd as it looks like it is communicating; but the command is reporting something that doesn't make sense.