Dell K789N, 500W Silencing the Alarm, Typical Alarms and Conditions continued, Alarm or Condition

Table 16. Typical Alarms and Conditions (continued)

Alarm or Condition	Possible Cause	Action
Output Short Circuit	The UPS has detected an	The UPS shuts down after five line cycles.
(Alarm 58)	abnormally low impedance
	placed on its output and
Continuous Alarm
	considers it a short circuit.
Heatsink Over Temperature	The UPS has detected that one	Ensure that the fans are spinning and that the
(Alarm 73)	of its heat sinks has exceeded	air intake vents on the UPS are not blocked.
	the maximum defined
Continuous Alarm		Once the maximum temperature is reached,
	operating temperature. Possible
		the UPS shuts down.
	fan failure.
Fatal EEPROM Fault	There is EEPROM data	Contact your service representative.
(Alarm 53)	corruption due to a failed
	device or incorrect flash
Continuous Alarm
	upgrade.
Fan Failure	The UPS has detected that one	This is an alarm only. Contact your service
(Alarm 193)	or more fans are not	representative immediately and remove the
	functioning properly.	load.
Continuous Alarm

Silencing the Alarm

Press any button on the control panel to silence the alarm. Check the alarm condition and perform the applicable action to resolve the condition. If any new alarm becomes active, the audible alarm resumes, overriding the previously silenced alarm.

Troubleshooting 63