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.Troubleshooting
17
Problem Possible Cause Corrective Action
Unit will not turn ON
ON/TEST button not pushed or P
ress the ON/TEST button for more than
2 seconds to power up the UPS & load
not pushed long enough
Circuit breaker has tripped
Output short circuit, or UPS is
overloaded
Very low or no utility voltage
To remove short circuited equipment or
overload, disconnect connected equip-
ment then re-set the circuit breaker
Check the AC power supply to the UPS
UPS will not turn ON or OFF
Computer interface or accessory D
isconnect the computer interface or
problem. ON/TEST or OFF button accessory. If the UPS then functions
not pushed long enough normally, check the interface cable, the
attached computer and/or the accessory
UPS operates on battery
UPS’s input circuit breaker tripped,
or circuit breaker requires activating
Remove connected loads from the UPS
even though line voltage is
by
unplugging equipment and resetting
the circuit breaker
Remove connected loads from the UPS
by unplugging equipment and resetting
the circuit breaker
apparently present
UPS beeps slowly
Normal UPS operation N
one – the UPS is supporting the load
UPS does not provide
The UPS's battery is not fully re-
charged due to recent use or it is
near the end of its service life
Charge the battery. If the battery is near
expected back-up time
the end of its service life, consider
replacing it, even if the fault code "E07"
has not been displayed yet
The UPS is overloaded
Check the UPS’s load display and
remove non-critical loads
Do not attempt to use the UPS, turn it
OFF and have it serviced
Output Failure
Internal fault
Over-temperature Condition
High ambient temp or internal fault
Output Short Circuit
Fault with connected equipment or
internal fault
Overload Condition
Rating/s of connected equipment
exceeds capacity of unit
Battery DC Bus Problem
Positive/Negative connections in-
correct or DC bus voltage incorrect
Incorrect Charge Voltage
Faulty battery charger
Battery Fault
Battery(ies) faulty or at the end
of their usefull life
Displays Fault code: E01
Displays Fault code: E02
Displays Fault code: E03
Displays Fault code: E04
Displays Fault code: E05
Displays Fault code: E06
Displays Fault code: E07
Power off UPS and allow to cool down.
Once cool, power up. If the problem
persists, contact technical support
Remove connected loads one-by-one
to identify. If the fault persists, contact
technical support
Reduce load by removing some of the
connected equipment from unit
Remove AC power from unit and reverse
the battery connections if incorrect
RED = + BLACK =
Contact technical support
Replace battery(ies)