Troubleshooting

Table 2

Troubleshooting chart

 

 

 

 

 

 

Problem

Cause

Solution

 

 

 

Check the circuit protector on the rear of the UPS.

 

 

 

If it is tripped, reset it and restart the UPS. For

 

 

Short circuit

further help, contact your local dealer, Liebert

UPS will not start

 

representative or the Liebert Worldwide Support

 

 

 

Group.

 

 

Battery disconnected or is

Check for proper connection of battery or

 

 

completely discharged

batteries.

 

 

UPS not plugged in

Plug in the power cord securely.

 

 

 

 

 

 

Circuit protector tripped

Reset the circuit protector and restart the UPS.

 

 

 

 

UPS starts on battery, but will not

 

Wait until the voltage rises to an appropriate level

Input voltage below threshold

or have the utility power checked by a qualified

switch to AC

 

electrician.

 

 

 

 

 

 

 

Wait until voltage lowers to an appropriate level

 

 

AC overvoltage

or have the utility power checked by a qualified

 

 

 

electrician.

 

 

 

Check load level display and remove non-

 

 

Load exceeded UPS capacity

essential loads. Recalculate the load and reduce

 

 

(110%), All Load Level Indicators

number of loads connected to UPS - the total

 

 

are illuminated; continuous beep

wattage of your equipment must not exceed the

 

 

 

capacity of the UPS.

 

 

Over temperature shutdown, Over

Make sure that the UPS is operating in 32°F to

 

 

Temp Indicator lit; continuous

104°F (0°C to 40°C) and that it has adequate

 

 

beep

ventilation.

UPS shuts down

MultiLink shutdown

Consult the MultiLink user manual or contact your

LAN administrator.

 

 

 

 

 

Internal UPS fault, Fault Indicator

Contact your local dealer, Liebert representative

 

 

Lit; continuous beep

or the Liebert Worldwide Support Group.

 

 

 

Your UPS has received a signal or command

 

 

UPS shutdown due to a command

from the attached computer. If this was

 

 

from the communications port(s),

inadvertent, ensure the communication cable

 

 

Load Level 0-25% Indicator

used is correct for your system. For assistance,

 

 

illuminated

contact your local dealer, Liebert representative

 

 

 

or the Liebert Worldwide Support Group.

 

 

Site Wiring Fault, UPS detected a

 

AC Input is flashing

line-to-neutral reversal or a loss of

Have the utility checked by a qualified electrician.

 

 

proper grounding.

 

 

 

 

Check battery connections,

All Battery Level Indicators

UPS is unable to perform manual

completely power down and restart UPS.

or remote battery test; beep every

NOTE: If the battery circuit opens while the UPS

flashing

 

 

half second for five seconds

is running, it will be detected when the next

 

 

 

 

 

battery test is performed.

 

 

 

 

Battery Indicator illuminated

UPS failed battery test

Initiate battery test again.

 

 

Batteries weak

Recharge batteries.

amber; long beep every minute

 

 

 

 

Batteries need to be replaced

Replace batteries.

 

 

 

 

 

 

Over temperature warning; beep

Make sure that the UPS is operating in 32°F to

Over Temp Indicator flashing

104°F (0°C to 40°C) and that it has adequate

every half second

 

 

ventilation.

 

 

 

 

 

 

 

Fault Indicator lit but UPS is On

Fault warning; beep every half

Reset UPS.

second

 

 

 

NOTE

The 1920VA UPS will sound an Overload alarm under certain Low Line conditions when it is fully loaded and it exceeds the input current rating. Unless the load is reduced, the condition will trip the branch circuit breaker.

25

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Liebert 1000 - 3000VA 60 Hz 120V user manual Troubleshooting chart Problem Cause Solution
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1000 - 3000VA 60 Hz 120V specifications

The Liebert 1000 - 3000VA 60 Hz 120V is an uninterruptible power supply (UPS) designed to protect critical electronic equipment and ensure uninterrupted operation in various settings. Ideal for small to medium-sized businesses, the Liebert UPS offers reliable power protection with its compact and efficient design.

One of the main features of the Liebert 1000 - 3000VA is its advanced battery technology. Equipped with high-performance sealed lead-acid batteries, this UPS ensures long-lasting power backup while requiring minimal maintenance. The smart battery management system intelligently monitors battery health, extending overall battery life while providing precise notifications for replacement, thus optimizing operational efficiency.

Another critical characteristic is its online double-conversion technology. This feature provides consistent and clean power by converting incoming AC power to DC and then back to AC again. This process effectively eliminates any electrical noise or power fluctuations, protecting sensitive electronics from interruptions or damage caused by power surges, spikes, or drops. As a result, workloads can operate without concern for potential power issues.

The Liebert UPS is designed with user-friendliness in mind. Featuring a clear LED display, it allows users to easily monitor performance metrics such as load level, battery health, and runtime status. In addition, the intuitive control panel simplifies operation and navigation through settings, making it accessible to users without extensive technical knowledge.

This UPS also offers flexibility with multiple outlet options. The Liebert 1000 - 3000VA includes a combination of NEMA outlets, providing compatibility with various equipment types, from servers and routers to networking devices and communications equipment. This versatility ensures that it meets diverse power requirements within any environment.

Moreover, the compact form factor enables installation in tight spaces while maintaining robust performance. Its efficient design facilitates heat dissipation, ensuring optimal operation without overheating.

The Liebert 1000 - 3000VA 60 Hz 120V UPS delivers excellent protection for critical equipment across various industries, including telecommunications, healthcare, and finance, ensuring operational continuity. With its advanced features, reliable technologies, and user-centered design, it stands out as a reliable choice for any organization seeking to safeguard its power supply infrastructure.
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