My setup has been an Aquaero 5 PRO + 3 daisy chained PA2's for 2.5 years. Over the past two weeks, two of the PA2's burned out. No idea why, nothing changed other than I replaced a pump on the first one that burned out after it burned out, thinking it was the pump before I figured out it was the controller that died. About two weeks later a different PA2 died.

I just ordered and installed 2 PA3's to replace the two burned out PA2's. Everything is working now, EXCEPT, the Aquaero isn't recognizing either PA3. Currently my chain goes AQ -> PA2 -> PA3 -> PA3. Is there some reason the Aquaero won't recognize the PA3's? I reinstalled the firmware, despite the fact that it was up to date already. No change.

Thanks,
CMD

No, I did not. That would probably explain the issue. So just so we are clear, I need to connect each PA3 via USB to the Motherboard to set the ID... and if I remember correctly, they will show up in Aquasuite when I do this. It's been a long time since I set this all up and I didn't remember about the ID's.

Thanks.

That was the issue. Everything worked like a charm after I did this.