Troubleshooting; Table 9 Troubleshooting - Errors And Corrective Action - Liebert GXT3-10000T230 User Manual

7.0 T
ROUBLESHOOTING
If any technical problems should occur, check the following before contacting Liebert technical sup-
port:
1. Is the mains voltage present at the UPS input?
2. Has the input fuse blown or have the circuit breakers tripped?
3. Has the UPS startup procedure been followed correctly?
When contacting Liebert technical support, have the following information to hand:
• Device model number
• Serial number (from the nameplate)
• Exact description of the problem (what loads are being operated, does the problem occur regularly
or sporadically, etc.)
For descriptions of the indicators mentioned in the following table, see 'Controls and Messages'.
Table 9 Troubleshooting - errors and corrective action
Problem
No display
No alarm
(UPS switched Off)
UPS on LED does not light up,
alarm beeps sound at intervals
UPS on LED does not
illuminate when mains voltage
present, audible alarm active at
intervals
FAULT LED illuminates, alarm
sounding constantly
Autonomy less than specified
'OVERLOAD' message
displayed
No communication between
UPS and PC
Possible cause
Mains switched Off
No mains voltage present
Input fuse blown or input
circuit breaker tripped
No mains voltage present
Input fuse defective or input
circuit breaker tripped
UPS error
Overheating
The fuse switch of the battery
extension(s) is 'OPEN'.
Batteries are not fully
charged
Batteries are defective
Charging device is defective
Overload at UPS output
Wrong serial connection
cable
Interface on the PC is being
used by another process or is
defective
Interference on the data
cable
29
Solution
Switch On main breaker
Have mains inspected by a qualified technician
Replace with fuse of same type or switch On
circuit breaker. If the problem persists, contact
technical support.
UPS operation control panel
Replace with fuse of same type or switch On
circuit breaker. If the problem persists, contact
technical support
Contact technical support
Decrease ambient temperature
Contact technical support.
Charge batteries (see 'Batteries') and test
backup time. If the problem persists, contact
technical support.
Contact technical support
Contact technical support
Reduce load to the permissible value
Check whether the correct cable has been
used (standard modem/null modem cables are
not permissible)
Check whether other software/service is
accessing the interface on the PC; try selecting
a different serial interface
Lay cable differently/Reinstall cabling

Troubleshooting