NGS FORTRESS 1500, User Manual

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ENGLISH
5
Phenomenon Trouble Shooting
Battery fails to supply power. Check whether the battery isn’t charged charge enough.
Check whether the UPS is not turned on correctly.
UPS doesn’t turn to AC (the input plug of the UPS has been plugged into
the AC socket and AC is normal, and the ON button has been pressed, but
the AC indicating light is not bright and the alarm beeps.
Check whether the fuse is broken? The fuse is placed on the UPS back panel.
After disconnecting the AC plug, put out the fuse and check whether the fuse
is broken, if so, please replace it with a new fuse.
When AC fails, the computer doesn’t work. Please turn on the UPS and charge the battery for at least 10 hours, when AC
is normal and then turn on the UPS.
AC output is normal, but the alarm beeps. AC is over voltage or low voltage.