APC SMX750 VA Replace Battery LED is illuminated, UPS displays a site wiring fault message

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Problem and Possible Cause

Solution

All LEDs are illuminated and the UPS is plugged into a wall outlet

The UPS has shut down and the battery has discharged from an extended outage.

None. The UPS will return to normal operation when the power is restored and the battery has a sufficient charge.

The Replace Battery LED is illuminated

	The battery has a weak charge.	Allow the battery to recharge for at least four hours. Then, perform a self-test.
	The battery has a weak charge.	If the problem persists after recharging, replace the battery.


	The replacement battery is not	Be sure that the battery connector is securely connected.
	properly connected.	Be sure that the battery connector is securely connected.
	properly connected.

The UPS displays a site wiring fault message

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 V units only.)

Smart-UPS X 750/1000/1500 VA 120/230 Vac Rack-Mount 2U

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Contents Smart-UPS X Uninterruptible Power Supply Page Product Description Important Safety MessagesSafety and General Information Rear Panel Features Front Panel FeaturesProduct Overview 120 VacInstallation SpecificationsEnvironmental Specifications Network Management Card External Battery PackConnect Equipment to the UPS Basic ConnectorsOperation Display Panel Using the display interfaceOverview Standard menusLog Advanced menusControl UPS Settings ConfigurationStart up settings General SettingsControllable Outlet Groups 750 VA 120 Vac Model specific controllable outlet groups1000 VA 120/230 Vac 1500 VA 120/230 VacUsing the controllable outlet groups and UPS outlets Turn Off Delay Turn On DelayReboot Duration On Battery Network Management Card Settings Normally closed contacts Emergency Power OffNormally open contacts UPS does not provide expected backup time TroubleshootingUPS is emits intermittent beeps Display interface LEDs flash sequentiallyUPS displays a site wiring fault message Replace Battery LED is illuminatedTransport the unit ServiceNon-transferable warranty Two Year Limited Factory WarrantyPage 990-3458B 04/2013 APC by Schneider Electric Worldwide Customer Support