Emerson GXT5000R-208 user manual Troubleshooting, LED indicators

TROUBLESHOOTING

This section presents various problems a user might encounter. Use this information to deter- mine whether external factors cause the problem and how to remedy the situation.

1.The Fault LED will illuminate, indicating the UPS detected a problem.

2.An alarm will sound, alerting that the UPS requires attention.

3.One or more additional load/battery level LED indicators will be illuminated to provide a diagnostic aid to the operator, as shown below:

Fault	A B C D E
LED
F

4.Record the LED condition and horn condition. Turn off the 30A AC input circuit breaker on the rear of the UPS and restart the UPS based on the Operating Instructions in this manual.

Table 2	LED indicators
LED status		Diagnosis	Audible alarm
All LEDs on		AC input overvoltage	Continuous beep
		On bypass due to overtemperature condition until the UPS	Continuous beep
A, F on		cools, then re-transferring load to inverter.
		Or off due to very high temperatures.	—
D, F on		Battery overvoltage	Continuous beep
E, F on		Battery mode overload	Half-second beep
			every 1 second
A, D, F on		Inverter output short	Continuous beep
Line LED		Input AC present, but exceeds PFC input requirements	—
flashing		(> 276 or < 170)
All battery		Battery failure warning	Continuous beep
capacity LEDs
flashing
B, C, F on		EPO shutdown	Continuous beep
Other		Record condition of LEDs and horn. Contact Liebert technical	—
		support.

If a problem persists, consult your local dealer, Liebert representative or the Liebert World- wide Support Group—telephone numbers may be found on the back of this manual. Please have the UPS model number and serial number available at the time of your inquiry.

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