Liebert GXT4 Procedure

Liebert GXT4 – Battery Percentage Rest Procedure
Symptom: After performing a battery replacement the battery run time can show 0 minutes and/or
have a high battery capacity percentage that is greater than 100%. This can be seen on the display
and from the web page of the network card.
*Caution: Following this procedure will completely remove the output power from the UPS that can shut
down the connected equipment. If the UPS has either the optional maintenance bypass (MicroPOD for
the 500-3000VA models or the built in one on the 5-10 kVA models) it is recommended that the unit be
placed in maintenance bypass to keep power to the connected equipment.
**Caution: Following this procedure will reset any of the configurable settings that could have been
made to customize the operational parameters to suit the application. It is recommended to review and
record the settings or use the configuration program that shipped with the UPS to download the settings
to upload them back after the reset is completed.
1. If your unit has an external maintenance bypass or one built into the UPS chassis (on 5-10 kVA
models only), follow the transfer procedure to place the system in maintenance bypass to keep
the connected equipment powered.
If there is no external maintenance bypass, shut down all the connected equipment.
2. Review and record all the customizable settings from the LCD display to be able to set the unit
up again once this reset function is complete. Main menu/Configuration/UPS and then Main
menu/Configuration/Battery
If you have the configuration program either on the original CD that shipped with the unit or if
you copied it to a computer hard drive, connect the USB cable from the computer to the UPS
then launch the configuration program. Use the "Download" button and save the configuration
file to your hard drive or USB drive. Remember the location where the file is saved to access
this later to restore the settings
3. Place the unit in standby mode. To do this, turn the UPS off but still have input power on the
input of the UPS. Main menu/Control/Turn UPS ON & OFF, press the ENTER button, select TURN
UPS OFF and press ENTER and confirm to turn off the UPS.
4. Once the UPS is in standby mode, using the LCD navigate to Main menu/Configuration/Factory
default and press ENTER, then select YES to confirm to reset to factory settings and select YES
when prompted to save the settings.
If using the configuration program, click on the "Factory Setting" button and confirm by
selecting the "Yes" button. Exit the configuration program.
5. If the unit is the 500-3000VA models, unplug the input cord from the wall outlet. If you have a
5-10kVA model, open the input breaker on the rear of the UPS. This will shutdown the UPS.