73Troubleshooting |Table 16. Typical Alarms and Conditions (continued)Alarm or Condition ActionPossible CauseCharger Failure(Alarm 34)Continuous AlarmA battery charger fault has beendetected.The UPS turns off the charger until the nextpower recycle. Contact your servicerepresentative.Output Short Circuit(Alarm 58)Continuous AlarmThe UPS has detected anabnormally low impedanceplaced on its output andconsiders it a short circuit.The UPS shuts down after five line cycles.Heatsink Over Temperature(Alarm 73)Continuous AlarmThe UPS has detected that oneof its heat sinks has exceededthe maximum definedoperating temperature. Possiblefan failure.Ensure that the fans are spinning and that theair intake vents on the UPS are not blocked.Once the maximum temperature is reached,the UPS shuts down.Fatal EEPROM Fault(Alarm 53)Continuous AlarmThere is EEPROM datacorruption due to a faileddevice or incorrect flashupgrade.Contact your service representative.Fan Failure(Alarm 193)Continuous AlarmThe UPS has detected that oneor more fans are notfunctioning properly.This is an alarm only. Contact your servicerepresentative immediately and remove theload.Silencing the AlarmPress any button on the control panel to silence the alarm. Check the alarm condition and perform theapplicable action to resolve the condition. If any new alarm becomes active, the audible alarm resumes,overriding the previously silenced alarm.