Symptom Possible Cause Remedy
Speakers emit a humming
or buzzing noise.
The PowerCenter
is sharing AC power
with equipment that
is not properly grounded.
• Connect your PowerCenter
to a dedicated outlet.
• Try unplugging different
components from the
PowerCenter one at a time
to see if the noise stops.
• Make sure all components
are plugged
into PowerCenter.
Alarm beeps continuously. The PowerCenter protection
circuitry has sacrificed
itself to protect connected
equipment from a
catastrophic surge.
The PowerCenter must
be replaced. See the
Warranty Information
section for important details.
”Ground OK” Diagnostic
Indicator Light does not
come on.
Make sure PowerCenter
is plugged into
grounded outlet.
Contact a qualified
electrician to check outlet(s)
for proper grounding.
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