5. Maintenance
5.1 Troubleshooting
Indication Diagnostic Correction
1
When the UPS is started using
button (24), all the LEDs go
ON once and the buzzer beeps
once, then LED (26) remains
ON.
The remote power off (RPO)
contact has been activated to shut
down the UPS and now prevents
restart.
Set the contact back to its normal
position and press button (24) to restart.
2
Button (24) and LEDs (25) and
(26) are ON and all the LEDs on
bargraph (20) flash.
The percent load is greater than
the set overload level or UPS
capacity.
Check the power drawn by the connected
devices and disconnect any non-priority
devices. Check the overload level setting.
3
Button (24) and LED (27) are ON
and all the LEDs on bargraph
(20) are flashing.
A critical overload has occurred
on the UPS output. If AC input
power fails, the load will not be
supplied in battery mode.
Check the power drawn by the connected
devices and disconnect any non-priority
devices.
4
LED (27) is ON and all the LEDs
on bargraph (21) are flashing.
A battery fault has been detected
during the automatic test.
Replace the battery module (see section
5.2, Battery-module replacement).
5
LED (27) alone is ON and the
buzzer sounds continuously.
A UPS internal fault has occurred
and the load is not supplied.
Visit www.eaton.com or call (800) 279-
7776. for after-sales support.
86-81710-00EN A03 - Page 21
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