Mhhh, had to ask our programmer and now I know: there is a bug in the firmware of the aquaero which shuts down the poweradjust when you exceed a load of 1.5A - no matter if it is only for a few milliseconds. This bug is already fixed in the next firmware. The reason why your PA2 works for a short time when you start the aquaero is that the PA2 works on its own while the aquaero is booting. When finished it takes control over the PA2 and than the bug comes into the game and causes the output to turn off.

@ALL: seems we eventually managed to get the aquasuite ready for tomorrow