5: TROUBLESHOOTING

Use the chart below to solve minor Smart-UPS installation and operation problems. Refer to the APC web site, www.apc.com, for assistance with complex UPS problems.

PROBLEM AND POSSIBLE

 

SOLUTION

CAUSE

 

 

UPS WILL NOT TURN ON

 

 

Battery not connected properly.

Check that the battery connector is fully engaged.

 

 

 

button not pushed.

Press the

button once to power the UPS and the connected equipment.

UPS not connected to utility

Check that the power cable from the UPS to the utility power supply is securely con-

power supply.

nected at both ends.

Very low or no utility voltage.

Check the utility power supply to the UPS by plugging in a table lamp. If the light is

 

very dim, have the utility voltage checked.

 

 

 

UPS WILL NOT TURN OFF

 

 

button not pushed.

Press the

button once to turn the UPS off.

Internal UPS fault.

Do not attempt to use the UPS. Unplug the UPS and have it serviced immediately.

 

 

 

UPS BEEPS OCCASIONALLY

 

 

Normal UPS operation when

None. The UPS is protecting the connected equipment.

running on battery.

 

 

 

 

UPS DOES NOT PROVIDE EXPECTED BACKUP TIME

The UPS battery is weak due to a

Charge the battery. Batteries require recharging after extended outages. They wear

recent outage or is near the end of

faster when put into service often or when operated at elevated temperatures. If the

its service life.

battery is near the end of its service life, consider replacing the battery even if the

 

replace battery LED is not yet lit.

 

 

ALL LEDS ARE ILLUMINATED AND THE UPS EMITS A CONSTANT BEEPING

Internal UPS fault.

Do not attempt to use the UPS. Turn the UPS off and have it serviced immediately.

 

 

 

FRONT PANEL LEDS FLASH SEQUENTIALLY

 

The UPS has been shut down

None. The UPS will restart automatically when utility power returns.

remotely through software or an

 

 

optional accessory card.

 

 

 

 

ALL LEDS ARE OFF AND THE UPS IS PLUGGED INTO A WALL OUTLET

The UPS is shut down and the

None. The UPS will return to normal operation when the power is restored and the

battery is discharged from an

battery has a sufficient charge.

extended outage.

 

 

 

 

 

THE SITE WIRING FAULT LED IS ILLUMINATED

 

The UPS is plugged into an im-

Wiring faults detected include missing ground, hot-neutral polarity reversal, and over-

properly wired utility power out-

loaded neutral circuit.

let.

Contact a qualified electrician to correct the building wiring.

 

 

 

 

9

Page 11
Image 11
American Power Conversion 208VAC, 5000VA 5U user manual Troubleshooting, UPS will not Turn OFF