American Power Conversion SU24R2XLBP installation manual Troubleshooting, Tion

PROBLEM AND POSSIBLE CAUSE

SOLUTION

UPS WILL NOT TURN ON

ON button not pushed.

Press the ON button once to power the UPS and the load.

UPS not connected to AC power

Check that the power cable from the UPS to the utility power

supply.

supply is securely connected at both ends.

UPS input circuit breaker tripped.

Reduce the load on the UPS by unplugging equipment and re-

setting the circuit breaker (on the back of UPS) by pressing the

plunger in.

Very low or no utility voltage.

Check the AC power supply to the UPS by plugging in a table

lamp. If the light is very dim, have the utility voltage checked.

Battery not connected properly.

Check that the battery connector is fully engaged.

UPS OPERATES ON-BATTERY ALTHOUGH NORMAL LINE VOLTAGE EXISTS

UPS input circuit breaker tripped.

Reduce the load on the UPS by unplugging equipment and re-

setting the circuit breaker (on the back of UPS) by pressing the

plunger in.

Very high, low, or distorted line

Move the UPS to a different outlet on a different circuit. Test

voltage. Inexpensive fuel powered

the input voltage with the utility voltage display. If acceptable to

generators can distort the voltage.

the connected equipment, reduce the UPS sensitivity.

ALL INDICATORS ARE LIT 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.

THE REPLACE BATTERY LED IS LIT

Weak battery.

Allow the battery to recharge for at least four hours. Then, per-

form a self-test. If the problem persists after recharging, replace

the battery.

Replacement battery not connected

Check that the battery connector is fully engaged.

properly.

THERE IS NO AC POWER AND THE UPS HAS BEEN TURNED OFF

When the UPS is off and there is no

utility power, use the cold start fea-

Press and hold the

button, (for about 3 seconds). The unit

ture to apply power to the connected

will beep, the LED lights will flash, and the unit will beep a

equipment from the UPS battery.

second time. Release the ON button during the second beep.

Cold start is not a normal condi-

This will supply immediate power to the UPS and the connected

tion.

loads. Make sure the connected loads are switched to their ON

positions.

11

990-1048, Revision 1 12/00