APC Power Supply Smart-UPS User Manual

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Smart-UPS C 1000/1500 VA 120/230 Vac Tower 9
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 input 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 emitting an audible beeping sound.
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 sound.
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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