Troubleshooting - GE NetPro Series User Manual

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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 (see 1, fig.1) 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 or consult
www.gedigitalenergy.com.
PROBLEM
Thermal Circuit Breaker (TCB)
tripped
LCD message 'on bypass'
UPS will not switch on (without
using 'battery start')
and the output has been off for
a few secs.
UPS switched off automatically
LCD message 'replace battery'
OPM_NPE_XXX_2K0_4K0_1GB_V040

7 - Troubleshooting

POSSIBLE CAUSE
UPS overload
System failure
Most probably an overload
Overtemperature
Line cord not connected
Batteries not connected
Dead wall socket outlet, or
mains voltage out of limits
UPS overtemperature
Runtime too low to start up
Tripped Thermal Circuit Breaker
UPS overtemperature
Mains failure, battery
discharged
Programmed shutdown in
progress
UPS received shut down
command from computer during
mains failure
The load is < 5% of the max.
load and no mains power is
present.
(No-load shutdown function is
active, see 3.3.3)
Battery test just after installation
or mains failure
Battery test shows weak battery
18
GE Digital Energy
SOLUTION
Reduce load, reset TCB
(1, fig. 1)
Contact your dealer or consult
www.gedigitalenergy.com
See 3.4.2.3, reduce the load
See 3.4.2.3
Allow the UPS to cool down
Read 2.2
Connect line cord
Contact your dealer or consult
www.gedigitalenergy.com
Contact qualified electrician
See 3.4.2.3
Allow UPS to cool down
See 3.2.3, wait or press OK
See above
See 3.4.2.3
Allow UPS to cool down
Wait until mains returns
See 3.6.2
See 3.6.1
Wait until mains returns
Allow the UPS to recharge the
batteries
Read 6.2, replace batteries
NetPro 2000-4000: user manual 4.0 (GB)