Hey... also having the same problem here... trying to get an Aqualink to speak with the AquaRite... had no problems on using the two until I upgraded the power control board to Firmware R. Using the same wiring configuration, I'm not able to get the aqualink to recognize the Chlorine generator. I tried working through the various emulation codes offered on another thread to AL-5 on the Aqua Rite but no luck yet. Any help would be appreciated or the name of the device that connects the two... thanks in advance... I'm new to this forum and am finding it very helpful with a variety of pool related stuff... great work!