Troubleshooting Guide
Problem | Cause | Solution | |
|
|
| |
UPS fails to start |
| Ensure UPS is OFF. Disconnect | |
UPS is short circuited or over- | all loads and ensure nothing is | ||
when the ON button | lodged in output receptacles. | ||
loaded. | |||
is pressed. | Ensure loads are not defective | ||
| |||
|
| or shorted internally. | |
|
|
| |
|
| UPS is operating from battery | |
| UPS not plugged in. | mode, make certain UPS is | |
| securely plugged into the wall | ||
|
| ||
|
| receptacle. | |
|
|
| |
| UPS input protection fuse has | UPS is operating from battery | |
Battery indicator | mode. Save data and close | ||
blown/opened. | applications. Replace UPS | ||
LED is illuminated. | |||
| input fuse, then restart UPS. | ||
|
| ||
|
|
| |
|
| UPS is operating from battery | |
| Utility voltage out of UPS input | mode. Save data and close | |
| applications. Ensure utility sup- | ||
| range. | ||
| ply voltage is within acceptable | ||
|
| ||
|
| limits for UPS. | |
|
|
| |
| Batteries are not fully charged. | Keep UPS plugged in continu- | |
| ously at least 24 hours to | ||
|
| recharge batteries. | |
| UPS is overloaded. | Check load level display and | |
UPS has reduced | reduce the load on the UPS. | ||
| |||
battery time. |
|
| |
| Replace batteries. Contact your | ||
|
| ||
| Batteries may not be able to | local dealer, Liebert representa- | |
| tive or the Liebert Worldwide | ||
| hold a full charge due to age. | ||
| Support Group for replacement | ||
|
| ||
|
| battery kit. | |
|
|
| |
Fault and Bypass |
| Check load level display and | |
UPS overloaded or load equip- | remove | ||
indicator LEDs and | Recalculate the load and | ||
all load level LEDs | ment is faulty. | reduce number of loads con- | |
are illuminated. |
| nected to UPS. Check load | |
|
| equipment for faults. | |
|
| Ensure UPS is not overloaded, | |
|
| ventilation openings not | |
Fault and Bypass | UPS internal fan has a problem | blocked, or room ambient tem- | |
perature is not excessive. Wait | |||
indicator LEDs and | or UPS shutdown due to tem- | 30 minutes to allow UPS to | |
diagnostic LED A are | perature condition. Load is on | cool, then restart UPS. If UPS | |
illuminated. | bypass power. | does not restart, contact your | |
|
| local dealer, Liebert representa- | |
|
| tive or the Liebert Worldwide | |
|
| Support Group. | |
Fault and Bypass | UPS internal DC bus overvolt- | UPS requires service. Contact | |
indicator LEDs and | your local dealer, Liebert repre- | ||
diagnostic LED B are | age. | sentative or the Liebert World- | |
illuminated. |
| wide Support Group. | |
Fault and Bypass |
| UPS requires service. Contact | |
indicator LEDs and | UPS control power supply fault. | your local dealer, Liebert repre- | |
diagnostic LED C | sentative or the Liebert World- | ||
| |||
are illuminated. |
| wide Support Group. | |
|
|
|
26
