Troubleshooting

Problem	Possible Cause	Corrective Action

Back-UPS will not switch on. The unit is not connected to utility power.		Ensure that the unit is securely connected to an
		AC outlet.

The circuit breaker has been tripped.

Disconnect non-essential equipment from the unit. Reset the circuit breaker. Re-connect equipment one item at a time. If the circuit breaker is tripped again, disconnect the device that caused the trip.

	The internal battery is not connected.	Connect the battery.
	The utility input voltage is out of range.	Adjust the transfer voltage and sensitivity range.
The unit does not provide	Ensure that essential equipment is not	Disconnect equipment from the SURGE ONLY
power during a utility power	plugged into a SURGE ONLY outlet.	outlet and re-connect to a BATTERY BACKUP
outage.		outlet.

The unit is operating on	The plug has partially pulled out of the wall	Ensure that the plug is fully inserted into the
battery power, while connected	outlet, the wall outlet is no longer receiving	wall outlet. Ensure that the wall outlet is
to utility power.	utility power, or the circuit breaker has been	receiving utility power by checking it with
	tripped.	another device.

	The unit is performing an automatic self	No action is necessary.
	test.

	The utility input voltage is out of range, the	Adjust the transfer voltage and sensitivity range.
	frequency is out of range, or the waveform
	is distorted.

The unit does not provide the expected amount of backup time.

Battery Backup outlets may be fully or	Disconnect non-essential equipment from the
improperly loaded.	BATTERY BACKUP outlets and connect the
	equipment to SURGE ONLY outlets.

The battery was recently discharged due to a	Charge the battery cartridge for 16 hours.
power outage and has not fully recharged.

The battery has reached the end of its useful	Replace the battery.
life.

The REPLACE BATTERY	The battery has reached the end of its useful	Replace the battery.
indicator is illuminated.	life.

The OVERLOAD indicator is The equipment connected to the unit is		Disconnect non-essential equipment from the
illuminated.	drawing more power than the unit can	BATTERY BACKUP outlets and connect the
	provide.	equipment to SURGE ONLY outlets.

The SYSTEM FAULT indicator is There is an internal fault.		Determine which internal fault message is
illuminated, all the front panel		displayed by matching the number displayed on
indicators are flashing.		the LCD with the corresponding Fault Message
		(see System Faults) and contact APC Technical
		Support.

Power is not supplied to some outlets.

Power to the Controlled Outlets has intentionally been turned off.

Confirm that the correct peripherals are connected to Controlled Outlets. If this feature is not desired, disable the Power-Saving Master and Controlled Outlets.

The Controlled Outlets are not supplying power, even though the Master device is not in sleep mode.

The Master Outlet threshold may be incorrectly set.

Adjust the threshold when the Master outlet signals the Controlled Outlets to shut down.

6	Back-UPS® RS Installation and Operation