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SERIES II 15 AMP POWER CONDITIONERS
voltage rating will be compromised. The unit
must be returned to Furman Sound, or an
authorized Furman Service center for repair.
NOTE: If the mains power is above the high
cutoff voltage and has caused the unit to
remove power from its outlets, it cannot restore
power without the operator manually turning
the unit off, then on again. Avoid turning the
unit back on, without rst checking the source
of the problem, and perhaps changing the AC
source.
T R O U B L E S H O O T I N G G U I D E
1.) Symptom: No power to the AC outlets.
Possible Cause: Circuit breaker has tripped
due to excessive load.
Action Needed: Remove one piece of
equipment from the Series II unit, and push the
square re-set tab into the Circuit breaker bezel.
2.) Symptom: No power to the AC outlets,
“Protection OK” indicator is not lit.
Possible Cause: Either the AC outlet to which
your Series II device is connected has no AC
voltage present, or the unit has been subjected
to a sustained voltage in excess of 400 Volts.
Action Needed: Plug the Series II unit into an
AC receptacle where AC voltage is present. If
the problem persists, the protection circuit may
be damaged, and require factory service.
3.) Symptom: Extreme Voltage indicator lit.
Possible Cause: Input voltage is above 135- 140
volts (260 – 265 volts E version, 120
- 125 volts J version), causing power to the unit’s
outlets to be shut down. Additionally, if the voltage
is below 85 - 90 volts at turn on, the unit will not
allow AC voltage to reach the outlets.
Action Needed: Correct the line voltage, then
turn the unit on. Consider installing a Furman
voltage regulator.
DEFINITIONS
SPIKE: This is a pulse of energy on the
power line. Spikes can have voltages as
high as 6000 volts. Though they are usually
of very short duration, the energy they
contain can be considerable, enough to
damage sensitive solid-state components
in audio and computer equipment. Spikes
can also foul switch contacts and degrade
wiring insulation. They are an unavoidable
component of electric power. They are caused
unpredictably by electric motors switching
on or off (on the premises or outside), utility
company maintenance operations, lightning
strikes and other factors. Spikes (also called
surges or transients) are absorbed by special
components in the PL-8 and PL-PLUS to
provide safe voltage levels to protect your
equipment.
RFI/EMI INTERFERENCE: Noise from RFI
(Radio Frequency Interference) or EMI (Electro
Magnetic Interference) involves lower voltages
and less energy than is found in spikes, but it
is continuous rather than transient in nature.
It is not likely to cause damage, but it can
certainly be annoying, producing static in audio
circuits, “snow” on video screens, or garbled
data in computers. Noise can be introduced
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