Troubleshooting  54 
•  Overload 
The load is supported, but not protected while in Auto-Bypass mode. 
Action: 
1.  If power management software is being used, check the log files to obtain specific error information 
to help identify the problem.  
For more information about the causes of a general fault condition, see the HP Power Manager user 
guide available for download from the HP website (http://www.hp.com/go/rackandpower
). 
2.  Verify that no blockage of airflow to the front bezel and rear panel exists. 
 
UPS is in Converter Off mode 
Fault conditions cause the UPS to transfer to Converter Off mode from Standby mode (on page 38) only. 
If the UPS is powering the load, fault conditions cause the UPS to transfer to Auto-Bypass mode instead. 
If a fault condition exist and the UPS is running in Auto-Bypass mode (on page 39), press the Off button to 
transfer the UPS to Converter Off mode. 
The load is not supported while in Converter Off mode. 
The following fault conditions trigger Converter Off mode: 
•  Inverter AC over voltage 
•  Inverter AC under voltage 
•  Rectifier input over current 
•  Inverter output over current 
•  Inverter fault 
•  Heat sink over temperature 
Action: 
1.  If power management software is being used, check the log files to obtain specific error information 
to help identify the problem.  
For more information about the causes of a general fault condition, see the HP Power Manager user 
guide available for download from the HP website (http://www.hp.com/go/rackandpower
). 
2.  Verify that no blockage of airflow to the front bezel and rear panel exists. 
 
General alarm condition 
Action: 
1.  If power management software is being used, check the log files to obtain specific error information 
to help identify the problem.  
For more information about the causes of a general alarm condition, see the HP Power Manager 
user guide available for download from the HP website (http://www.hp.com/go/rackandpower
). 
2.  Check the batteries: 
a.  Allow the UPS batteries to charge for 24 hours.