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CyberPower PR750RT2U - Troubleshooting

CyberPower PR750RT2U
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Problem
Possible Cause
Solution
UPS does not provide power to
equipment.
Circuit breaker has tripped due to an
overload.
Turn the UPS off and unplug at least one piece of equipment. Wait
10 seconds, reset the circuit breaker and then turn the UPS on.
Batteries are discharged.
Recharge the UPS for at least 3 hours.
UPS has been damaged by a surge or spike.
Contact CyberPower for repair.
Non-critical outlets have turned off
automatically due to an overload in battery
mode.
NCL outlets will be turned on automatically as utility is restored. To
avoid recurring, check “Off on Overload” setting in Outlet Control
Menu and disable the function.
UPS does not perform expected
runtime.
Batteries are not fully charged.
Recharge the batteries by leaving the UPS plugged in.
Batteries are degraded.
Contact CyberPower about replacement batteries.
UPS does not recognize the correct
quantity of Extended Battery Modules.
Adjust the setting of Extended Battery Module Quantity on your
UPS to correct numbers via LCD module, PowerPanel® Business
software or RMCARD interface (if installed).
UPS cannot be turned on.
UPS is not connected to an AC outlet.
The unit must be connected to a 100 120V or 100 125V outlet.
(See TECHNICAL SPECIFICATIONS section)
Batteries are worn out.
Contact CyberPower about replacement batteries.
Mechanical problem.
Contact CyberPower for repair.
Part of hard reboot process has been
performed.
Long press of the power switch is to forcibly shut down the UPS
when it freezes. When the UPS is off, long press of the power
switch will light up the LCD screen for a few seconds but cannot
turn on the UPS. Refer to BASIC OPERATION section to correctly
turn on the UPS.
PowerPanel® Business is
inactive.
The serial cable or USB cable is not
connected.
Connect the cable to your UPS and computer. Use the cable that
came with the unit if your own communication cable does not
work.
The serial cable or USB cable is connected to
the wrong or defected port.
Try another port on the computer.
UPS is not providing battery power.
Shut down the computer and tune the UPS off. Wait 10 seconds
and turn the UPS back on to reset the unit.
Night mode fan speed control is
inactive. Fans keep rotating in a
higher speed level in line mode.
Ambient temperature is too high.
Turn off the unit and check the ventilation.
Overload for the fan speed level.
Adjust the fan speed to a higher level, or turn the UPS off and
unplug at least one piece of equipment. Wait 10 seconds and then
turn the UPS on.
Component fault, such as fans.
Call CyberPower for repair.
“Service Battery” message appears
on LCD screen.
The Battery Replacement Date has reached
the recommended maintenance period.
Perform a runtime calibration to verify battery capacity is sufficient
and acceptable.
If batteries have been recently replaced, then reset the Battery
Replacement Date using PowerPanel® Business -Agent software or
RMCARD interface; you can also reset the Battery Change Date in
Advanced Setup Menu through LCD module.
Fault or Error message is
appearing on LCD screen.
An internal malfunction may have occurred.
Please refer to Fault Warning Display and Alarm in the LCD
OPERATION GUIDE section. If the fault persists, take note and
contact CyberPower for repair.
TROUBLESHOOTING

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