Troubleshooting Guide

In rare circumstances, there are some computer peripherals or DACs that feature three-prong grounded AC cords
and whose circuits rely on a hard AC ground (i.e., they cannot be oated). Under these rare circumstances, you may
obtain better results with that one component plugged into one of the High Current/Power Correction outlets or
into an accompanying Niagara 5000, 500, 200, or 100 Low-Z Power Noise-Dissipation System.
My home or grounds were hit by lightning. The Niagara 7000 seems to be
functioning properly. Should it be sent in for inspection or service?
If you see or smell smoke coming from the unit, it needs service. Otherwise, if it functions after such an event
(which is very likely), there is nothing that would be compromised or damaged. If it fails after such an event, it
will fail totally. However, it’s unlikely that this would occur. The circuit is designed to easily handle any voltage
or current surge that could possibly make it past an electrical panel. The force required to damage the Niagara
7000 via a power surge would melt the panel and burn the building (in which case, the Niagara 7000 is the least
of your worries).
I broke o an AC plug tab while connecting or removing one of my AC cords.
The tab is stuck in the outlet. What should I do?
First, turn o or place on standby/mute all of your components, then turn o the Niagara 7000. Next, only after
you are absolutely certain that the power switch is o—you could also remove the input AC cord for even greater
safety assurance—use a strong set of pliers or a small handheld vice grip tool to grasp the portion of the tab that is
protruding from the NRG Edison outlet. While producing moderate outward pressure, gently wiggle the tab until it
pulls free from the outlet. This should be all that is necessary, and the outlets should be ne.
This will be a rare occurrence, but, because the gripping strength of the NRG Edison outlets is far greater than
that of generic or audiophile-grade AC Edison outlets, it is possible, if: An AC cord plug has tabs that are slightly
oversized or An AC cord plug has plating that is overly thick; or an AC cord plug is installed or removed in haste.
How do I clean the chassis and/or the electrical contacts?
The Niagara 7000’s black-painted chassis and dark chrome front panel can be cleaned with AudioQuest CleanScreen
or a modest misting of household window cleaners. Please use soft cotton or wool toweling to remove the liquid
from the metal and painted surface. Whenever possible, use the supplied polishing rag for the front panel, only
using liquid cleaner when oil or grime is beyond the polishing cloth’s capacity to thoroughly clean. Never use
alcohol or solvent-based cleaners. They can damage the surfaces, paint, and silk-screening material.
The AC inlet, outlet posts, and grips are all generously plated with silver. There is no need to clean these if they
are not exposed to foreign substances such as grease and dirt. Silver oxide is a superior conductor to silver itself.
If cleaning is required, Isopropyl alcohol (preferably 99% purity) on a cotton swab is best for the inlet tabs. Some
manufacturers provide specialized cleaners for the AC output surfaces. Again, however, cleaning these surfaces
will most likely be unnecessary.
Note: A pipe cleaner or cleaning swab with a wood stick and compact wool tip (available from an electronics
supply house) will be superior to household swabs. When working in a small area such as an AC outlet, this is
critical. Loose strands of cotton may damage the AC outlet. Damage to an AC inlet or outlet due to cleaning is not
covered under your warranty. If you damage an inlet or outlet in an attempt to clean it, you will be charged for the
repair and you will be responsible for all shipping costs.
I hear a slight buzzing sound coming from the Niagara 7000. Is it damaged?
No, it’s not damaged (or, at least, damage is very unlikely). If you’re in an extraordinarily quiet room and you hear
this buzzing sound only when in relatively close proximity to the Niagara 7000, or only when you place your ear
next to the unit, the buzzing is normal and, unfortunately, cannot be eliminated.