FJ-RC-WIFI-1NA Communication Error with Fujitsu System

FJ-RC-WIFI-1NA Communication Error with Fujitsu System

I have set up Fujitsu FJ-RC-WIFI-1NA Wi-Fi Module for use with my #AUU12RLF unit. However, I am getting an error; Error IH1: Error in the communication of IntesisHome device with the AC unit. I have already checked the compatibility table, so compatibility is not the issue. What do I need to do?