OPM_GTU_TWR_1K0_3K0_XUS_V015
18
DE GT Series: User manual rev date 8-11-04
Digital Energy GT Series
g
Whenever a malfunction occurs, first check external factors (e.g. connections, temperature,
humidity or load) to determine whether the problem is caused by the unit itself or by its
environment. Subsequently check the thermal circuit breaker: it may be tripped. If so: reset it
and be sure that the UPS is not overloaded.
The following chart is a simple troubleshooting checklist only. If the suggested solution does
not succeed, or if the information is insufficient to solve the problem, please contact your dealer.
PROBLEM
POSSIBLE CAUSE
SOLUTION
UPS overload
Reduce load, reset breaker
Input Circuit Breaker tripped
System failure
Contact your dealer or consult
www.gedigitalenergy.com
UPS will not switch on
Line cord not connected
Connect line cord
Dead wall socket outlet, or
mains voltage out of limits
Contact qualified electrician
Tripped input circuit breaker
Check whether UPS is not
overloaded, reset breaker
Battery voltage too low
Allow UPS to recharge the battery
Batteries
not
connected
Contact your dealer or consult
www.gedigitalenergy.com
UPS has no output
UPS over-temperature
Allow UPS to cool down
Utility failure, battery depleted Wait until utility power returns
Input breaker tripped
See above
LED ‘Fault’ lights up, buzzer
sounds continuously
Internal UPS failure
Contact your dealer or consult
www.gedigitalenergy.com
LED ‘Fault’ flashes
Wiring fault (L-N reversed)
Have site wiring checked by
qualified electrician
LED ‘Battery low’ lights up,
buzzer beeps 2x/sec.
Battery is close to being
exhausted during utility failure
The UPS output will be lost soon.
Shut down the load in an orderly
manner
LED ‘Replace battery’ lights up,
buzzer sounds continuously
Battery test just after a utility
failure (‘false alarm’)
Allow the UPS to recharge the
battery for approx. 8 hours, then
repeat the battery test
Battery is close to being worn
out
Allow the UPS to recharge the
battery for approx. 8 hours, then
perform battery test. If the alarm
persists, consider battery
replacement
LED ‘Overload’ lights up,
buzzer sounds continuously
UPS is overloaded
Reduce load, e.g. by unplugging
non-critical load
Buzzer sounds continuously:
over-temperature
Ambient temp. too high, or
ventilation blocked
Reduce ambient temperature,
enhance ventilation
Fan failure
Have the fan replaced
UPS cannot be linked to
computer
Communication cable
defective
Check cable
Transmitting
rate
fault
Adjust transmitting rate
Communication port fault
Check COM1/COM2 configuration
of the computer
7 - Troubleshooting
