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6. Troubleshooting
If the UPS system is not functioning normally, check for errors in installation, wiring or operation. If all these aspects
check out with no problems, contact support at Tripplite.Eaton.com/support with the following information:
1. Product model name and serial number.
2. Description of the problem with details, such as LCD display information, LED statuses, etc.
Read this owner’s manual carefully. The table below may help you solve the problem easily.
No. Problem Possible reason Solution
1 Utility is connected, but the
UPS cannot be powered ON.
• Input power supply is not connected
• Input voltage low
• The input switch of the UPS is not
switched on
• Measure if the UPS input voltage/frequency
is within the window
• Ensure UPS input is switched on
2 Utility normal but Utility LED
does not illuminate, and the
UPS operates at battery mode
• The input breakers of the UPS are not
switched on
• Input cable is not connected securely
• Switch on the input breaker
• Make sure the input cable is connected
securely
3 The UPS does not indicate a
fault, but there is no output
voltage
• Output cable is not connected securely
• Output breaker switch not on
• Make sure the output cable is connected
securely;
• Switch on the output breaker
4 Utility LED is ashing Utility voltage exceeds UPS input range If the UPS operates in battery mode, pay
attention to the remaining backup time
needed for your system
5 Battery LED is ashing, but
there is no charge voltage and
current
• Battery breaker is not switched on
• Batteries are damaged
• Battery is connected in reverse
• Battery number and capacity are not set
correctly
• Switch on the battery breaker
• If batteries are damaged, replace entire
group of batteries
• Connect the battery cables correctly
• Go to the LCD setting for the battery
number and capacity and set the correct
data
6 Buzzer beeps every 0.5
seconds and LCD display
“output overload”
Overload Remove some of the load
7 Buzzer sounds long beeps,
LCD displays fault code 29
The UPS output is in short circuit Make sure the load is not in short circuit,
then restart the UPS
8 The UPS only works on Bypass
Mode
The UPS is set to ECO Mode Set the UPS working mode to Normal Mode
9 Cannot Power On • Battery switch is not properly closed
• Battery fuse is not open
• Battery is low
• Battery quantity is set incorrectly
• Power breaker in the rear panel is not
switched to ON position
• Close the battery switch
• Change the fuse
• Recharge the battery
• Power on the UPS with AC to set the
correct battery quantity
• Switch on the power breaker
10 Buzzer beeps continuously and
LCD indicates 1, 3, 5, 9, 15, etc.
fault codes
The UPS is out of order Consult with your local agent for repair
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