MGE UPS Systems Pulsar EX 1000 Installation And User Manual page 22

4. Maintenance
Troubleshooting requiring MGE UPS SYSTEMS after-sales support
LED 13 flashes and the
buzzer sounds
continuously.
Page 22 -
51031604EN/AB
Indication
UPS electronics have detected a UPS fault.
Depending on the UPS personalisation parameters
(see section 3.4), there are two possibilities:
the equipment connected to the UPS continues to be
supplied, but directly from the AC-power source (via
the automatic bypass (LED 20 ON);
the connected equipment is no longer supplied.
Signification
The equipment connected to the UPS is no
longer protected.
Correction
Call the after-sales support
department.