19
≥
A battery can present a risk of electric shock and high short circuit current. The following precaution
should be observed before replacing batteries:
•
Remove watches, rings, or other metal objects.
•
Use tools with insulated handles.
•
Wear rubber gloves and boots.
5. TROUBLESHOOTING
Problem
Possible Cause
Solutions
No LED display on the front
panel.
Low battery.
Charge the UPS at least 8 hours.
Battery fault.
Replace the battery with the same type of
battery.
The UPS it’s not turned on.
Press the power switch again to turn on the
UPS.
Alarm continuously
sounds when the
mains is normal.
UPS overload.
Remove some devices first. Before
reconnecting equipment, please verify that the
load matches the UPS capability specified in
the specs.
Alarm sounds every 2
seconds when the mains is
normal.
Battery defect.
Replace the battery with the same type of
battery.
When power fails, back-up
time is short.
UPS overload.
Remove some critical load.
Battery voltage is too low.
Charge the UPS at least 8 hours.
Battery defect. It might be due to high
temperature operation environment, or
improper operation to battery.
Replace the battery with the same type of
battery.
The mains is normal
but LED is flashing.
Power cord is loose.
Reconnect the power cord properly.
Summary of Contents for Sekury D500
Page 1: ...GB User manual SEKURY D500 SAI UPS...
Page 2: ......
