Troubleshooting
Table 18 contains descriptions of critical alarm codes. Critical alarms require immediate operator attention and corrective action.
Table 18. Critical Alarm Messages
Alarm Message | What It Means | What to Do |
|
|
|
Low Battery (A) | The UPS has shut down after running | Wait for AC input power to be restored. When AC input |
| on battery and discharging the | power returns, the UPS begins recharging batteries and |
| batteries. | applies power to the load. |
|
|
|
High Battery (C) | The battery voltage is too high | Contact your service representative. |
| because of a charger problem, |
|
| battery problem, or incorrect |
|
| parameter setting. |
|
|
|
|
Low AC Out (E) | The UPS has shut down because the | Contact your service representative. |
| AC output voltage is too low to |
|
| provide power to the load. |
|
|
|
|
High AC Out (F) | The UPS has shut down because the | Contact your service representative. |
| AC output voltage is too high. |
|
|
|
|
High AC In (S) | The AC input voltage is too high; any | This alarm automatically clears when input voltage |
| further increase to the voltage may | returns to normal limits. The UPS will continue to support |
| damage the UPS. | the load until the batteries are depleted. |
|
|
|
Output Overload (G) | The load is requiring more power | Switch off your equipment one piece at a time until the |
| than the UPS power modules are | alarm stops. |
| capable of supplying, and the UPS |
|
| has switched to Bypass mode. |
|
Overload Shutdown (I) The UPS has shut down due to excessive load.
Remove excess load(s) from the UPS output and restart the UPS by pressing the ON button through the front panel display.
High Heatsink | The inverter temperature is too high. | If the UPS has not shut down, bypass the UPS or shut |
Temperature (H) | If the temperature reaches a preset | down your equipment, and turn the UPS off. Contact your |
| limit, the unit will shut down. | service representative. |
|
|
|
E P O (P) | The Emergency | Deactivate the external EPO switch and restart the UPS |
| function has been activated. | by pressing the ON button through the front panel |
|
| display. |
Call Service (T) | The UPS has detected a problem that |
| requires service. |
See Table 9 on page 67 and Table 20 on page 86 for information about reason codes. Contact your service representative.
Call Service (5) | The UPS has detected a module fan | Contact your service representative. |
| problem that requires service. |
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84 | Powerware® 9170 User's Guide |