22
P
ROBLEM AND
/
OR
P
OSSIBLE
C
AUSE
S
OLUTION
THE BYPASS LED IS ILLUMINATED
The UPS has briefly directed
power around the power proc-
essing module during a startup
sequence.
Nothing. This is a normal behavior of the UPS during startup.
The UPS has directed power
around the power processing
module because too much load
was placed on the UPS.
Check the PowerChute
log file to confirm that an overload condition has
occurred. Reduce the load on the UPS and restart the UPS.
The UPS has directed power
around the power processing
module because of an internal
fault.
Replace the power processing module (See
Storage, Maintenance,
Transporting, and Service).
THERE IS NO UTILITY POWER
There is no utility power and
the UPS is off.
Use the Cold Start feature to supply power to the connected equipment from
the UPS battery.
Press the
button for one second and release. The UPS will beep briefly
and go quiet. Press and hold the
button again, but for about three sec-
onds. The unit will emit a sustained beep. Release the button during this
beep. This will supply immediate power to the UPS and the connected
equipment.
UPS OPERATES ON BATTERY ALTHOUGH NORMAL LINE VOLTAGE EXISTS
3000XHV only:
UPS input
circuit breaker tripped.
To reduce the load on the UPS, unplug equipment and reset the circuit
breaker.
Very high, low, or distorted
line voltage.
Move the UPS to a different outlet on a different circuit, as inexpensive fuel
powered generators may distort the voltage. Test the input voltage with the
utility voltage display (see
Operation
). If acceptable to the connected
equipment, reduce the UPS sensitivity.
BATTERY CHARGE AND BATTERY LOAD LEDS FLASH SIMULTANEOUSLY
The internal temperature of
the UPS has exceeded the
allowable threshold for safe
operation.
Check that the room temperature is within the specified limits for operation.
Check that the UPS is properly installed, allowing for adequate ventilation.
Allow the UPS to cool down. Restart the UPS. If the problem continues,
contact IBM.
