30
280ES / 420ES / 650ES / 1000ES / 1400ES
5.
TROUBLESHOOTING
The TROUBLESHOOTING CHART on the next page covers most of the difficulties that you
may encounter under normal working conditions. If the UPS fails to operate properly,
please review the following steps before calling the repair center:
1.
Is the UPS plugged into a proper working outlet?
2.
Is the line voltage within the rating specified?
3.
Does the circuit breaker on the rear panel need to be reset?