TROUBLESHOOTING
Eaton 9155 UPS (8–15 kVA) User's Guide S 164201553 Rev G (www.eaton.com/powerquality)
80
ActionPossible CauseAlarm or Condition
The UPS does not start.
The main utility breaker is off. Verify that the main utility breaker is on.
If an optional isolation transformer is installed,
the input circuit breaker is off.
Verify that the isolation transformer input circuit breaker is on.
The remote emergency power-off (REPO) switch
is active or the REPO connector is missing.
Reset the REPO switch and restart the UPS. Verify that the REPO
connector is present.
Power is not available at the
UPS output receptacles.
The UPS is in Standby mode. Supply power to the connected equipment: Press any button on
the front panel display to activate the menu options. Press the
button on the front panel display and then press the button to
select the TURN UPS ON/OFF menu. Press the button to select
the TURN UPS ON option; press the button. Press and hold the
button for three seconds, until the UPS stops beeping.
The UPS does not provide the
expected backup time.
The batteries need charging or service. Apply utility power for 48 hours to charge the batteries. If the
condition persists, contact your service representative.
Battery circuit breakers are in the OFF position. Switch all battery circuit breakers to the ON position.
Silencing the Alarm
Before silencing an alarm, check the alarm condition and perform the applicable action
to resolve the condition (see Table 19).
To silence the alarm for an existing fault, press any button on the front panel display.
If the alarm status changes, the alarm beeps again, overriding the previous alarm
silencing.
Service and Support
If you have any questions or problems with the UPS, call your Local Distributor or the
Help Desk at one of the following telephone numbers and ask for a UPS technical
representative.
United States:
1-800-843-9433 or 1-919-870-3028
Canada: 1-800-461-9166 ext 260
All other countries: Call your local service representative
Please have the following information ready when you call for service:
S Model number
S Serial number
S Firmware version number
S Date of failure or problem
S Symptoms of failure or problem
S Customer return address and contact information
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