73
EN
9.1 ALARM/FAULT MESSAGES
Alarm or notification
Possible cause
Notification/solution
LCD display not
lighting up
Battery not connected
Connect the battery
Battery defective
Replace battery using
a replacement kit
On/Off button was not
actuated
Press the On/Off button
again
Alarm sounding despite
normal supply from
mains
UPS overloaded
Ensure that the UPS
load meets the specific
capacity (see
Specifications)
Mains connection plug
is loose
Insert the mains
connection cable
correctly
The autonomy time
drops in the event of
a power failure
UPS overloaded
Remove all non-critical
loads
Battery voltage too low Charge the battery for
6 or more hours
Battery defective due
to an excessively high
ambient temperature,
aging, or inappropriate
use
Replace battery using
a replacement kit
9. TROUBLESHOOTING
Summary of Contents for Protect NAS
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