Troubleshooting

Table 5

Troubleshooting guide

 

 

 

 

Problem

Cause

Solution

 

 

 

 

UPS fails to start when the

UPS is short-circuited or

Ensure the UPS is OFF. Disconnect all loads and ensure

nothing is lodged in output receptacles.

ON button is pressed.

overloaded.

Ensure the loads are not defective or shorted internally.

 

 

 

 

 

 

 

 

 

UPS not plugged in.

UPS is operating in Battery Mode, make certain UPS is

 

 

securely plugged into the wall receptacle.

 

 

 

Battery indicator is

UPS input protection fuse

UPS is operating in Battery Mode. Save data and close

has blown/opened.

applications. Replace UPS input fuse, then restart UPS.

illuminated.

 

 

 

Utility voltage out of UPS

UPS is operating in Battery Mode. Save data and close

 

 

applications. Ensure utility supply voltage is within

 

 

input range.

 

 

acceptable limits for UPS.

 

 

 

 

 

 

 

 

 

Batteries are not fully

Keep UPS plugged in continuously at least 24 hours to

 

 

charged.

recharge batteries.

UPS has reduced battery

UPS is overloaded.

Check load level display and reduce the load on the UPS.

time.

 

 

 

 

Batteries may not be able to

Replace batteries. Contact your local dealer, Liebert

 

 

 

 

representative or the Liebert Worldwide Support Group for

 

 

hold a full charge due to age.

 

 

replacement battery kit.

 

 

 

 

 

 

Fault and Bypass indicators

UPS overloaded or load

Check load level display and remove non-essential loads.

and all Load Level indicators

Recalculate the load and reduce number of loads

equipment is faulty.

are illuminated.

connected to UPS. Check load equipment for faults.

 

 

 

 

Fault and Bypass indicators

UPS control power supply

UPS requires service. Contact your local dealer, Liebert

and diagnostic indicator C are

fault.

representative or the Liebert Worldwide Support Group.

illuminated.

 

 

 

 

 

 

 

Fault and Bypass indicators

UPS PFC (Power Factor

UPS requires service. Contact your local dealer, Liebert

and diagnostic indicator D are

Correction Circuit) fault.

representative or the Liebert Worldwide Support Group.

illuminated.

 

 

 

 

 

 

 

 

 

 

UPS internal fan has a

Ensure the UPS is not overloaded, ventilation openings

 

 

are not blocked and room ambient temperature is not

Fault and Bypass indicators

problem or UPS shutdown

excessive.

and diagnostic indicator A are

due to temperature

Wait 30 minutes to allow UPS to cool, then restart UPS.

illuminated.

 

condition. Load is on bypass

 

If UPS does not restart, contact your local dealer, Liebert

 

 

power.

 

 

representative or the Liebert Worldwide Support Group.

 

 

 

 

 

 

Fault and Bypass indicators

UPS internal DC bus

UPS requires service. Contact your local dealer, Liebert

and diagnostic indicator B are

overvoltage.

representative or the Liebert Worldwide Support Group.

illuminated.

 

 

 

 

 

 

 

Fault and Bypass indicators

 

UPS requires service. Contact your local dealer, Liebert

and diagnostic indicator E are

UPS inverter fault.

Representative or the Liebert Worldwide Support Group.

illuminated.

 

 

 

 

 

 

 

 

Fault and Bypass indicators

Inverter-to-Inverter

UPS requires service. Contact your local dealer, Liebert

and diagnostic indicators A

Communications Failure

Representative or the Liebert Worldwide Support Group.

and B are illuminated.

 

 

 

 

 

Fault indicator and diagnostic

 

Replace batteries. Contact your local dealer, Liebert

indicators A and C are

UPS failed the battery test.

representative or the Liebert Worldwide Support Group.

illuminated.

 

 

 

 

 

 

 

 

 

 

 

 

Only phase angles of 120, 180 or 240 degrees

 

 

 

(±10 degrees) are permitted. These must be compatible

 

 

 

with the selections in the configuration program.

 

 

 

Or the phase angle has changed while the UPS was

Fault indicator and diagnostic

L1 to L2 phase angle

running. The phase angle is detected at startup and

cannot be changed to a different power source while

indicators A and D are

unacceptable.

running.

illuminated.

 

 

 

Turn the UPS Off and wait until the fans stop. Apply input

 

 

 

 

 

 

AC power. The UPS will reprogram the phase angle to

 

 

 

match the utility, if the utility is 120, 180 or 240 degrees

 

 

 

between L1 and L2. If this does not resolve the issue,

 

 

 

contact a qualified electrician to verify the site wiring.

40

DISCONTINUED

 

PRODUCT

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Liebert GXT2-10000RT208 user manual Troubleshooting guide Problem Cause Solution
Page 45 Page 47

GXT2-10000RT208 specifications

The Liebert GXT2-10000RT208 is a highly sophisticated uninterruptible power supply (UPS) designed to deliver reliable power protection for critical IT infrastructure and business operations. With a power capacity of 10,000 VA, this UPS ensures the continuous operation of essential devices, safeguarding them from potential damage caused by power interruptions, surges, or sags.

One of the standout features of the Liebert GXT2-10000RT208 is its online double conversion technology. This technology provides a consistent, high-quality power output by converting incoming AC power to DC and then back to AC. This process eliminates voltage fluctuations and offers a stable energy supply, ensuring that connected equipment operates smoothly, regardless of the condition of the utility power.

The UPS is designed to support a wide range of applications, making it an ideal choice for data centers, telecommunications setups, and other critical environments. Its advanced microprocessor control ensures precise monitoring and regulation of power conditions. The Liebert GXT2-10000RT208 also features an impressive input voltage range, which is beneficial in areas where power quality is inconsistent.

Equipped with an LCD display, users can easily access vital information regarding the UPS’s operational status, battery health, and power protection levels. This user-friendly interface simplifies monitoring and management, allowing for quick assessments and troubleshooting.

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In summary, the Liebert GXT2-10000RT208 is a powerful and versatile UPS solution that combines advanced technology with robust features. Its online double conversion technology, extensive monitoring capabilities, and scalable design make it an excellent choice for organizations seeking reliable protection for their critical systems. With the GXT2-10000RT208, businesses can operate confidently, knowing their power supply is secure from unexpected disruptions.
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