APC Power Supply APC Smart-UPS C Power Supply User Manual

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11Smart-UPS C 1000/1500/2000/3000 VA 120/230 Vac Rack-Mount 2U
Troubleshooting
Problem and Possible Cause Solution
The UPS will not turn on or there is no output
The UPS has not been turned on. Press the ON button once to turn on the UPS.
The UPS is not connected to AC power. Be sure the power cable is securely connected to the UPS and to the AC
power supply.
The input circuit breaker has tripped. Disconnect nonessential equipment and reset the circuit breaker.
The UPS shows very low or no AC input
voltage.
Check the AC power supply to the UPS by plugging in a table lamp. If
the light is very dim, check the AC voltage.
The battery is not securely connected. Be sure that all battery connections are secure.
There is an internal UPS fault. Do not attempt to use the UPS. Unplug the UPS and have it serviced
immediately.
The UPS is operating on battery while connected to AC power
The input circuit breaker has tripped. Disconnect nonessential equipment and reset the circuit breaker.
There is very high, very low, or distorted
input line voltage.
Move the UPS to a different outlet on a different circuit. Test the input
voltage with the AC voltage display. If acceptable to the connected
equipment, reduce the UPS sensitivity.
The UPS is beeping
The UPS is operating normally. None. The UPS is protecting the connected equipment.
The UPS does not provide expected battery backup time
The UPS battery is weak due to a recent
power outage or is near the end of its
service life.
Charge the battery. Batteries require recharging after an extended
outage.
Elevated ambient temperatures, poor quality AC power, and frequent
short duration discharges will shorten battery life.
If the battery is near the end of its service life, consider replacing the
battery even if the replace battery icon is not illuminated.
The UPS is experiencing an overload
condition.
Check the UPS load display. Unplug nonessential equipment, such as
printers.
The Fault LED is illuminated, the UPS displays a fault message and emits a constant beeping
Internal UPS fault. Do not attempt to use the UPS. Turn the UPS off and have it serviced
immediately. If more than one fault is present the fault messages will be
displayed alternately on display screen.
The Replace Battery icon is illuminated
The battery has a weak charge. Allow the battery to recharge for at least four hours.
Then, perform a Self-Test. If the problem persists after recharging,
replace the battery.
The replacement battery is not properly
connected.
Be sure the battery connector is securely connected.
Site Wiring Fault LED is flashing
Wiring faults detected include missing
ground, hot-neutral, polarity reversal, and
overloaded neutral circuit.
If the UPS indicates a site wiring fault, have a qualified electrician
inspect the building wiring. Applicable for 120 Vac units only.

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