Problem
UPS is not ON; LED will not light
UPS is always in Backup Mode
Backup time is too short
Continuous beep & LED overload
indication
Red LED is flashing
11.1 Storage Conditions
Store the UPS covered and upright in a cool, dry location, with its battery fully
charged. Before storing, charge the UPS for at least four hours. Remove any
accessories in the accessory slot and disconnect any cables connected to the
computer interface port to avoid unnecessary draining of the battery.
11.2 Extended Storage
During extended storage in environments where the ambient temperature is -15
to +30 °C (+5 to +86 °F), charge the UPS battery every six months.
During extended storage in environments where the ambient temperature is +30 to
+45 °C (+86 to +113 °F), charge the UPS battery every three months.
English version
10.0 Troubleshooting
Probable Cause
UPS is OFF or the ON/OFF/Test button
was not pushed for 1+ seconds
Battery voltage is less than 10 V
Other failure
Load is less than 20 W in Backup
Mode
Loose ac input power connection
Circuit breaker trips
Line voltage too high, too low, or blackout
Other failure
Battery is not fully charged
Other failure
Overload condition
Battery failure
Do not attempt to open the UPS or replace the battery. Call
SolaHD Technical Support for further instructions.
11.0 Storage
Required Action
Press the ON/OFF/Test button for
more than 2 seconds
Recharge the UPS for at least 4 hours.
If the unit still does not start, check the
input fuse.
Call SolaHD Technical Support
Normal condition
Tighten the ac power connection
Reset the breaker
Normal condition
Call SolaHD Technical Support
Recharge the UPS for at least 4 hours
Call SolaHD Technical Support
Remove the overload
Recharge the UPS for at least 8 hours.
Perform UPS self-test.
SDU Series Instruction Manual • 12