PowerWalker VFI 10000TCP 3_1 - Manual (Page 56)

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7.2 Trouble Shooting According To Fault Indication
Problem Displayed Possible cause Remedy
Inv Overload Fault
Alarm code:42
Overload Check the loads and remove some
non-critical loads.
Check if some loads are failed.
Byp Overload Fault
Alarm code:43
Overload Check the loads and remove some
non-critical loads.
Check if some loads are failed.
Output Short Circuit
Alarm code:31
Output short
circuit Remove all the loads. Turn off the UPS.
Check if UPS output and loads is short
circuit.
Ensure short circuit is removed before
turning on again.
Heatsink Over
Temperature Fault
Alarm code:81
Inside
temperature of
UPS is too high Make sure the UPS is not overloaded; the
air vents are not blocked and the
ambient temperature is not too high.
Wait for 10 minutes for the UPS to cool
down before turning on again. If failed,
please contact the distributor or service
center.
Bus Over Voltage
Alarm code:21
UPS internal fault Consult dealer.
Bus Under Voltage
Alarm code:22
UPS internal fault Consult dealer.
Bus Unbalance
Alarm code:23
UPS internal fault Consult dealer.
Bus short
Alarm code:24
UPS internal fault Consult dealer.
Bus Softstart Fail
Alarm code:25
UPS internal fault Consult dealer.
Inv Over Voltage
Alarm code:32
UPS internal fault Consult dealer.