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The original was posted on /r/ubiquiti by /u/BDube_Lensman on 2023-08-20 22:38:55+00:00.

I just installed a PDU Pro into my setup, and it seems to be incompatible with my APC battery backups/UPSs?

A smaller UPC-600 won’t power the PDU without wall power connected, and a larger 1500VA unit immediately throws error F02 (solid state component damage!) if I have the PDU Pro connected to it, but not wall AC. Both UPSes are content if wall AC is connected.

WTF is going on?