Vertiv Liebert GXT3-10000RT208

Questions and Answers

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David LindseyAug 14, 2025
Why is the battery indicator illuminated on my Vertiv Liebert GXT3-10000RT208?
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  Thomas BonillaAug 14, 2025
  The battery indicator illuminates when the Vertiv UPS is operating from battery mode. To resolve this, save your data and close applications. If the utility power is out of tolerance, ensure the utility supply voltage is within acceptable limits for the UPS. Keep the UPS plugged in continuously for at least 24 hours to recharge the batteries. Also, make sure the UPS is securely plugged into the wall receptacle. If the UPS input protection fuse has blown or opened, replace it and then restart the UPS.
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Paula DiazAug 18, 2025
What to do if Fault and Bypass indicators and all LED segments of battery level indicator are illuminated on my Vertiv Liebert GXT3-10000RT208 UPS?
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  Dr. Emma HuffAug 18, 2025
  If the Vertiv UPS is overloaded or the load is faulty, check the load level indicator and remove non-essential loads. Recalculate the load and reduce the number of loads connected to the UPS. Inspect the load for any faults. Make sure the UPS is not overloaded, the ventilation holes are not blocked, and the room's ambient temperature isn't too high. Allow the UPS to cool down for 30 minutes, then restart it. If the UPS still won't restart, it requires service, and you should contact your local dealer, Emerson representative, or Emerson Channel Support.
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Connor LozanoAug 21, 2025
What to do if my Vertiv Liebert GXT3-10000RT208 is overloaded?
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  upowellAug 21, 2025
  If your Vertiv UPS is overloaded, it could be that the batteries may not be able to hold a full charge due to age. To address this, check the load level indicator and reduce the load on the UPS. Consider replacing the batteries.
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Jennifer ButlerAug 25, 2025
What does it mean if the Fault indicator and diagnostic A and C indicators are illuminated on my Vertiv UPS?
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  Michelle JonesAug 25, 2025
  If the Fault indicator and diagnostic A and C indicators are illuminated on your Vertiv UPS, it means that the UPS has failed the battery test. To resolve this, replace the batteries.
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Dr. Howard PittmanAug 27, 2025
What does it mean if the Fault indicator and diagnostic A and B indicators are illuminated on my Vertiv UPS?
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  Mallory MorrisonAug 27, 2025
  If the Fault indicator and diagnostic A and B indicators are illuminated on your Vertiv UPS, it indicates a UPS failure, which could include dual-fan failure, single-fan failure under certain conditions, or battery charger failure. First, make sure the fan is not obstructed. If the fault persists, it requires service.
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David HoodAug 31, 2025
How to fix Vertiv Liebert GXT3-10000RT208 that fails to start when the On/Alarm Silence/Manual Battery Test button is pressed?
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  Cynthia GarciaAug 31, 2025
  If your Vertiv UPS fails to start when you press the On/Alarm Silence/Manual Battery Test button, it could be due to a short circuit or overload. Ensure the UPS is off, disconnect all loads, and check that nothing is lodged in the output receptacles. Also, make sure the loads are not defective or shorted internally.
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Aaron ReedSep 3, 2025
What to do if the Battery indicator and Bypass indicator are flashing on my Vertiv UPS?
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  Andrew HarringtonSep 3, 2025
  If the Battery indicator is flashing and the Bypass indicator is flashing on your Vertiv UPS, it means the battery source is not available, and a continuous horn is sounding. To fix this, check the battery connections, completely power down the UPS, and then restart it.
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Charles SerranoSep 6, 2025
What does it mean if Fault and Bypass indicators and diagnostic B indicator are illuminated on my Vertiv Liebert GXT3-10000RT208 UPS?
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  burnskimberlySep 6, 2025
  If the Fault and Bypass indicators and diagnostic B indicator are illuminated on your Vertiv UPS, it indicates a UPS internal DC bus overvoltage. The UPS requires service.
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David FreySep 10, 2025
What does it mean if Fault indicator and diagnostic D indicator are illuminated on my Vertiv Liebert GXT3-10000RT208?
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  Patricia LeSep 10, 2025
  If the Fault indicator and diagnostic D indicator are illuminated on your Vertiv UPS, it indicates a UPS PFC (Power Factor Correction Circuit) fault. The UPS requires service.

Summary

Important Safety Instructions

Battery Safety Precautions

Precautions for handling batteries to prevent electrical shock and short circuit current.

General Safety Precautions

Precautions for safe operation and maintenance of the UPS to prevent shock or fire.

2 System Description

5 Installation and Configuration

Main Cabinet Installation

Instructions for installing the main UPS cabinet, including tower and rack setups.

External Battery Cabinet Installation

Procedures for connecting external battery cabinets to extend runtime.

Input;Output Power Connection and Distribution Box Procedures

7 Controls and Indicators

Front Panel Controls

Explanation of the ON/Alarm Silence/Manual Battery Test and Standby/Manual Bypass buttons.

8 Operation

Startup, Initial Checks, and Battery Test

Pre-startup, initial electrical checks, and manual battery test procedures.

Bypass, Shutdown, and Power Disconnection

Procedures for manual bypass, shutdown, and disconnecting input power.

9 Communication

10 Maintenance

Replacing Internal Battery Pack and Charging

Precautions, Status Checks, and Power Module Replacement

11 Troubleshooting

UPS Symptoms, Indicators, and Alarms

Common symptoms, LED indicators, and audible alarms for UPS malfunctions.

Troubleshooting Table and Solutions

12 Specifications

UPS Model Specifications

Vertiv Liebert GXT3-10000RT208 Specifications

General

Form Factor	Tower
Dimensions (H x W x D)	27 x 7 x 19 inches
Weight	150 lbs
Output Voltage Regulation	± 1%
Power Rating	10 kVA / 9 kW
Input Voltage	208 VAC
Output Voltage	208 VAC
Battery Type	Sealed Lead Acid
Topology	Double Conversion
Communication	USB, Serial, SNMP
Input Frequency	50/60 Hz
Output Frequency	50/60 Hz
Communication Ports	RS-232, USB
Operating Temperature	32°F to 104°F
Storage Temperature	5 to 113°F (-15 to 45°C)
Humidity	0% to 95% non-condensing