I have a new P20 and when I plugged it in, I get an intermittent (quiet) hum and a clicking sound from the unit. These move in a cycle and continually repeat (in the same rhythm). I also get movement that corresponds to this cycle on the meters on the front display. I have plugged in other components, but have not turned them on until I get this straightened out. I have power cycled the unit several times.
I am also now getting a “short circuit” message next to the network information on the display. I tried unplugging all components and plugging them back in to see what happened. All was well, until I plugged in the third unit (which happened to be my beloved Magnum Dynalab 108TSE) and then the clicking and the hum started again. When I looked at the display, I saw the “Short Circuit” message.
It appeared to operate fine until the MD108 was plugged in, then the cycling started over again (as described above) and then I saw the short circuit message. The image of the receptacles on the front screen is red, rather than green (as should be the case). None of the components have been turned on - kind of scared to do so with the big Accuphase monoblocks (A200s) which are power hungry.
I tried the stock power cord from the wall to the unit (instead of the after market verastarr cord I was using with my p10). Same results. It powered on fine, went into the cycle with the clicking and the movement on the display dials, but the receptacles were green. After about a minute, the receptacles went red and I got the short circuit signal.
I’m unplugging everything until I speak with a PSA representative. May have a bad unit or some other gremlin.
Since this tuner has tubes you may have a bad tube which is causing the problem. Not sure if this unit has a soft start for the tubes, i.e., a warm up before full power is applied, but that would account for the delay in getting the “short circuit” notification.
All of the regenerators should run pretty silent without clicking. Give us a call and we’ll have you chat with one of our Service team members, it may end up that bringing the unit into the factory may be necessary. But we can get it sorted out for you. We’re closed for the weekend but we’ll be available Monday morning at 8:30am Mountain time, 1-800-PSAUDIO.
Thanks, but is not as easy as it seems. I bought the unit second hand in Austria…
Forgot to say: the unit has shucko outlets, but on the display are shown UK plugs.
Maybe it is necessary to hard reset the unit?
Or install a new software?