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2) trouble shooting according to fault indication – PowerWalker VFI 6000LE Plus User Manual

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27

(2) Trouble shooting according to fault indication.

LED

1

2

3

4

5

6

Possible

cause

Action

Output short
circuit

Remove all the loads. Turn off the
UPS. Check whether the output
of UPS and loads is short circuit.
Make sure the short circuit is
removed, and the UPS has no
internal faults before turning on
again.

Internal fault
(inverter
failed)

Contact the distributor or service
center.

Internal fault
(inverter
relay short)

Contact the distributor or service
center.

Overload

Check the loads and remove
some non-critical loads.

Check whether some loads are
failed.

Internal over
temperature

Check whether the UPS is
overloaded, the air vents are
blocked, and the ambient
temperature is over 40

.

If the overload or block is
removed, please make the UPS
cool down for 10 minutes before
turning on again.

It is not recommended the UPS is
operated at

the ambient

temperature of over 40

.

Internal fault
(bus voltage
fault)

Contact the distributor or service
center.

Other
internal fault

Contact the distributor or service
center.

: Lightened constantly