18 ANOMALIES AND TROUBLESHOOTING
A list of anomalies and related solutions are described below:
The UPS does not switch on and does not give any signals
• Press the ON/TEST/ALARM button on the front panel for more 1 second. If the UPS does
not switch on go into the next step.
• Leave the UPS connected to the mains for at least 4 hours in order to recharge the batteries.
Then try to switch on again.
The UPS continues to run in BATTERY mode and the mains input
voltage is present.
• Make sure that the UPS input voltage is present and that the voltage amplitude is within the
internal specifications.
• Before you go on to the next operations switch the UPS OFF and remove the UPS
input voltage.
• Check the Input Circuit Breaker. Should it be snapped (OFF position) check if the UPS is
overloaded; then try to rearm the breaker by bringing it in the ON position (keep it pressed)
• Check the feeding cable and all connections.
Equipments connected to the UPS do not switch ON
• Before you go on to the next operations switch the UPS OFF and remove the UPS
input voltage.
• Check the condition of every feeding cables and their right connection.
The UPS indicates OVERLOAD
• Check which dispositives are feeding by the UPS and if it is really overloaded.
• Bring the power request within the specifications and disconnect the dispositives that cause
the overload.
The UPS autonomy is lower than the specified one.
• Recharge the batteries for at least 8 hours and then check the autonomy again.
UPS EVO 16 User’s manual
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