PowerWalker VFI 6000LE Plus - Manual (Page 31)

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Note 1: when the UPS failed, the red Fault/Warning LED will be lightened constantly,
and the buzzer will beep continuously.
Note 2: When the UPS is fault, it will stop the power conversion of mains or battery,
the original Load/Battery level LED will code the fault cause.
Note 3: If the fault can’t be shoot, please contact the distributor or service center.
(3) Trouble shooting in else cases.
Problem Possible cause Action
Battery not yet been
fully charged.
Keep UPS connected to utility
power persistently for more than
10 hours to recharge the
batteries.
UPS overloaded.
Check the loads and remove
some non-critical loads.
Battery aged. Replace the batteries.
Battery discharging
time diminishes
Charger failed
Check the charger. Contact the
distributor or service center.
The button is pressed
too briefly. Press the button continuously for
more than 2 seconds.
Battery is not
connected or battery
voltage is too low, or
Charger failed.
Check the charger and battery.
The UPS cannot
power on after
pressing the button
UPS fault.
Contact the distributor or service
center.
4.3 Battery Maintenance
1) The battery used for standard models are valve regulated sealed
lead-acid maintenance free battery. It should be charged regularly in
order to maximize the expected life of the battery. When being
connected to the utility power, whether the UPS is turned on or not,
the UPS keeps charging the batteries and also offers the protective
function of overcharging and over-discharging.