PowerWalker VFI 10000T LCD, Manual

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7. Trouble Shooting
If the UPS system does not operate correctly, first check the operating
information on the LCD display.
Please attempt to solve the problem using the table below. If the
problem still persists, consult your dealer.
7.1 Trouble Shooting According To Warning Indication
Problem Displayed Possible cause Remedy
Read EEPROM Error UPS internal fault Consult dealer.
Epo Active
EPO connector is
closed Check the EPO connector
status
On Maintain Bypass Maintain bypass
switch is open
Check the maintain bypass
switch status
IP softstart failed UPS internal fault Consult dealer
Site Wiring Fault Phase and neutral
conductor at input of
UPS system are
reversed
Reverse mains power wiring.
Battery Disconnect 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.
Battery low Battery voltage is low When audible alarm sounding
every second, battery is almost
empty.
Output Overload Overload Check the loads and remove
some non-critical loads.
Check if some loads are failed.
Fan Failure Fan abnormal Check if the fan is running
normally.
Charger Fail The charge fails Consult dealer.
Battery Over Voltage Battery voltage is
higher than normal
value
Check if the battery quantity is
right.