PowerWalker VFI 10000TCP 3_1 - Manual (Page 54)

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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
Epo Active
Alarm code:71
EPO connector is closed Check the EPO connector status
On Maintain Bypass
Alarm code:72
Maintain bypass switch
is open Check the maintain bypass switch
status
Battery Disconnect
Alarm code:11
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
Alarm code:12
Battery voltage is low When audible alarm sounding
every second, battery is almost
empty.
Output Overload
Alarm code:41
Overload Check the loads and remove some
non-critical loads.
Check if some loads are failed.
Fan Failure
Alarm code:84
Fan abnormal Check if the fan is running
normally.
Charger Fail
Alarm code:15
The charge fails Consult dealer.
Over Charge
Alarm code:14
Battery is over charged The UPS will turn off the charger
until the battery voltage is normal
Model Pin Error
Alarm code:92
UPS internal fault Consult dealer.