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20
9. Troubleshooting
When there is a fault, error, warning, or alarm, both the front and bottom LED banks will flash red. If the UPS system does
not operate correctly, use the following table to identify the problem.
Problem/Fault code Possible Cause/Fault Event Solutions
UPS will not turn on after
pressing On/Off button.
Releasing the On/Off button
too quickly.
Press and hold the “On/Off” button for
at least 2 seconds, then release.
The mains supply is normal,
but the UPS is operating in
battery mode.
Power cord is loose. Reconnect AC input power cord.
Circuit breaker has tripped. Reset the input circuit breaker. If the input circuit
breaker trips after the UPS restarts, remove excess
loads from the UPS.
The AC normal icon is illuminated,
but there is no output.
The UPS has an internal fault. Disconnect the computer cable from the UPS and
press the On button. If UPS functions normally, the
software has control of the UPS.
Battery backup time is shorter
than nominal value.
Batteries are not fully charged. Charge the batteries for at least 5 hours, then check
capacity. If the problem persists, contact your dealer.
Battery defect. Contact your dealer to replace the battery.
Fault code E12 and
icon is on.
Output voltage is too high on
battery mode.
Contact your dealer.
Fault code E13 and
icon is on.
Output voltage is too low on
battery mode.
Contact your dealer.
Warning code E32 and
icon is flashing.
Communication lost between
UPS and Base.
Contact your dealer.
Warning code E32 and
icon flashes.
The distance between remote
panel and the docking base is out
of wireless transmission range.
Reduce the distance between the remote panel and
the docking base.
Error occurs with the pairing
password.
Quick-press the “On/Off” button 5 times to reset
pairing, then connect the remote panel to the
docking base.
Fault code E14 and
icon is on.
Output is short-circuited. Check if connected devices are in short-circuit status.
Disconnect short-circuited loads and restart the UPS.
Fault code E15 and
icon is on.
Overcurrent on output. Reduce the connected load by switching off
some equipment.
Fault code E20 and
icon is on
Fan lock fault. Contact your dealer.
Fault code E21 Overcharge voltage. Contact your dealer.
Fault code E28 and
icon is on
Main internal UPS battery low. The battery requires replacement. If the fault still
occurs after battery replacement, contact your dealer.
Fault code E43 and
icon is on
Overload fault. Contact your dealer.
icon is illuminate and the
alarm sounds continuously.
The UPS has an internal problem. Contact your dealer.
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