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| Troubleshooting | |
Table 1 | Troubleshooting guide (continued) | |||
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Problem | Cause | Solution | ||
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| Check load level display | |
Fault and Bypass |
| and remove | ||
indicator LEDs | UPS overloaded or load | loads. Recalculate the load | ||
and all load level | and reduce number of | |||
equipment is faulty. | ||||
LEDs are |
| loads connected to UPS. | ||
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| |||
illuminated. |
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| Check load equipment for | |
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| faults. | |
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| Ensure UPS is not | |
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| overloaded, ventilation | |
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| openings not blocked, or | |
Fault and Bypass | UPS internal fan has a | room ambient temperature | ||
is not excessive. Wait 30 | ||||
indicator LEDs | problem or UPS shutdown | |||
minutes to allow UPS to | ||||
and diagnostic | due to temperature | |||
cool, then restart UPS. If | ||||
LED A are |
| condition. Load is on | ||
| UPS does not restart, | |||
illuminated. |
| bypass power. | ||
| contact your local dealer, | |||
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| Liebert representative or | |
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| the Liebert Worldwide | |
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|
| Support Group. | |
Fault and Bypass |
| UPS requires service. | ||
indicator LEDs | UPS internal DC bus | Contact your local dealer, | ||
and diagnostic | Liebert representative or | |||
overvoltage. | ||||
LED B are |
| the Liebert Worldwide | ||
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illuminated. |
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| Support Group. | |
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| ||
Fault and Bypass |
| UPS requires service. | ||
indicator LEDs | UPS control power supply | Contact your local dealer, | ||
and diagnostic | Liebert representative or | |||
fault. | ||||
LED C are |
| the Liebert Worldwide | ||
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| |||
illuminated. |
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| Support Group. | |
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| ||
Fault and Bypass |
| UPS requires service. | ||
indicator LEDs | UPS PFC (Power Factor | Contact your local dealer, | ||
and diagnostic | Liebert representative or | |||
Correction Circuit) fault. | ||||
LED D are |
| the Liebert Worldwide | ||
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| |||
illuminated. |
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| Support Group. | |
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| ||
Fault and Bypass |
| UPS requires service. | ||
indicator LEDs |
| Contact your local dealer, | ||
and diagnostic | UPS inverter fault. | Liebert Representative or | ||
LED E are |
|
| the Liebert Worldwide | |
illuminated. |
|
| Support Group. | |
Fault indicator |
| Replace batteries. Contact | ||
LED and |
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| your local dealer, Liebert | |
diagnostic LED A | UPS failed the battery test. | representative or the | ||
and C are |
|
| Liebert Worldwide Support | |
illuminated. |
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| Group. | |
29 | DISCONTINUED |
| PRODUCT |
