Upscale wrote:

"David" wrote in message

I know there's something weird with our house wiring because we can't
use ac intercoms except at 2 receptacles--all other locations fail to

work.

I've had similar things happen. I finally traced it to the line conditioners
I had on my computer system and my stereo system. Once those were unplugged,
all the other receptacles worked as they should.


We've got 3 UPS's running in the house, but no line conditioners. Did
you leave the conditioners off line permanently?

Dave