GE Industrial Solutions Digital Energy GT Series UPS 5_6_8_10 kVA - Manual (Page 40)

8 TROUBLESHOOTING
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 fig. 3.3.5.a/b) and be sure that the
UPS is not overloaded.
The following chart is a simple troubleshooting checklist. 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 POSSIBLE CAUSE SOLUTION
Mains switched off Switch on mains supply
No mains voltage present Carry out mains inspection,
consult qualified electrician
No display
No alarm
(UPS switched off)
Input fuse blown or circuit
breaker tripped Replace fuse or reset breaker
Mains indicator not illuminating,
acoustic alarm intermittent No mains voltage present Read section 4.4.2 – UPS on
battery
Mains indicator not illuminating,
mains voltage present, acoustic
alarm intermittent Input fuse blown or circuit
breaker tripped Replace fuse or reset breaker
UPS failure Contact UPS dealer or go to
www.GEDigitalEnergy.com
UPS over-temperature Allow UPS to cool down
Alarm LED illuminated,
continuous acoustic alarm
Overload at UPS output Reduce UPS load
Battery extension fuse switch is
in ‘Open’ position Switch to ‘On’ position
Batteries are not fully charged Charge batteries for 8 hours and
reconfirm runtime
Batteries are defective Contact UPS dealer
Delivered runtime less than
specified
Charger is defective Contact UPS dealer
Last load bar LED is lit, acoustic
alarm intermittent Overload at UPS output Reduce UPS load
Incorrect communication cable Check whether correct cable is
used
PC interface defective or being
accessed by another service Check if no other software is
accessing the interface
No communication between
UPS and PC
Interference on the data cable Rearrange cables
modifications reserved 40 User manual GT Series 5/6/8/10 kVA UPS 1.0 (US)