Power Director Issue

I’ve got an old PS Audio Power Director on my secondary system. Woke up today to it making a loud buzzing/clicking sound (hard to describe, sounded almost like a small electrical motor running, but with a definite clicking sound to it). I unplugged it from the wall and haven’t done anything else. Anyone have a clue what’s going on with this thing or how I should troubleshoot from here?

Perhaps a relay gone fritz. I would call our service department or send an email to service at psaudio

Thanks, Paul.