Troubleshooting
7.1.2Audible Alarm
An audible alarm will sound in conjunction with the visual indicators to indicate a change in UPS operating status. The audible alarm will sound as described in Table 9.
Table 9 | Audible alarm description |
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| Condition | Alarm |
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Battery discharge | ||
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Low battery |
| Two |
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UPS fault, load on bypass | ||
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UPS fault, no power to load | Continuous | |
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Overload |
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Battery replacement | ||
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Battery loss |
| Continuous |
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Wiring problem (loss of proper grounding for UPS) | Continuous | |
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Bypass reminder | ||
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7.2Troubleshooting
In the event of an issue with the UPS, refer to Table 10 to determine the cause and solution. If the fault persists, contact Emerson® Channel Support.
Table 10 Troubleshooting table
Problem | Cause | Solution | |
UPS fails to start when the | UPS is | Ensure UPS is Off. Disconnect all loads and ensure | |
On/Alarm Silence/Manual | nothing is lodged in output receptacles. Ensure loads | ||
overloaded | |||
Battery Test button is pressed | are not defective or shorted internally. | ||
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| UPS is not plugged in | UPS is operating from battery mode. Ensure UPS is | |
| securely plugged into the wall receptacle. | ||
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| UPS input protection fuse has | UPS is operating from battery mode. Save data and | |
| close applications. Replace UPS input fuse, then restart | ||
Battery indicator is illuminated | blown/opened | ||
UPS. | |||
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| UPS is operating from battery mode. Save data and | |
| Mains power is out of tolerance | close applications. Ensure mains supply voltage is | |
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| within acceptable limits for UPS. | |
| Batteries are not fully charged | Keep UPS plugged in continuously at least 24 hours to | |
| recharge batteries. | ||
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UPS has reduced battery | UPS is overloaded | Check load level indicator and reduce the load on the | |
UPS. | |||
backup time |
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Batteries may not be able to | Replace batteries. Contact your local dealer, Emerson | ||
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| representative or Emerson Channel Support for | ||
| hold a full charge due to age | ||
| replacement battery kit. | ||
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Fault and Bypass indicators |
| Check load level indicator and remove | |
and all LED segments of | UPS is overloaded or load is | ||
loads. Recalculate the load and reduce number of loads | |||
battery level indicator are | faulty | ||
connected to UPS. Check load for faults. | |||
illuminated |
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| Ensure UPS is not overloaded, ventilation holes are not | |
Fault and Bypass indicators | UPS has been shut down due | blocked and room ambient temperature is not | |
excessive. Wait 30 minutes to allow UPS to cool, then | |||
and diagnostic A indicator are | to temperature condition; load | ||
restart UPS. If UPS cannot restart, contact your local | |||
illuminated | is on bypass power | ||
dealer, Emerson® representative or Emerson Channel | |||
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| Support. | |
Fault and Bypass indicators | UPS internal DC bus | UPS requires service. Contact your local dealer, | |
and diagnostic B indicator are | |||
overvoltage | Emerson representative or Emerson Channel Support. | ||
illuminated | |||
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Liebert® GXT3™ | 30 |