PowerWalker VFI 1000T LCD - Manual (Page 32)

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Fan fail
Fan abnormal Check if the fan is running
Battery over voltage
Battery is over
charged Switching to battery mode
automatically, and after the
battery voltage is normal
and the mains is normal, the
UPS would Switching to line
mode automatically again.
Battery low
Battery voltage is
low When audible alarm
sounding every second,
battery is almost empty.
Charge fail
The charge is
broken Notify dealer.
DC-DC temperature
high
Inside temperature
of the UPS is too
high Check the ventilation of the
UPS, check the ambient
temperature.
Inverter temperature
high
Inside temperature
of the UPS is too
high Check the ventilation of the
UPS, check the ambient
temperature.
Ambient temperature
high
The ambient
temperature is too
high Check the environment
ventilation.
Line voltage high
(OVCD action)
Input power
voltage is too high Switching to battery mode
automatically, and after the
mains is normal, the UPS
would Switching to line
mode automatically again.
Battery open
Battery pack is not
connected
correctly Do the battery test to
confirm.
Check the battery bank is
connected to the UPS.
Check the battery breaker is
turn on.
Overload
Overload Check the loads and
remove some non-critical
loads.
Check whether some loads
are failed.
Site fail
Phase and neutral
conductor at input Rotate mains power socket
by 180° or connect UPS