Troubleshooting
Table 5 | Troubleshooting guide (continued) |
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Problem | Cause | Solution | ||
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Fault indicator and diagnostic |
| UPS has shut down due to the REPO (Remote Emergency | ||
indicators B and C are | REPO is currently activated. | |||
Power Off). The output cannot be started by any method. | ||||
illuminated. |
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| UPS is OFF due to previous REPO (REPO is no longer | |
Fault indicator and diagnostic | UPS output is OFF from a | activated). Once utility power is restored, press the OFF | ||
indicators B and D are | previous REPO command. | button twice within four seconds (to clear the alarm), then | ||
illuminated. |
| REPO is no longer activated. | press the ON button to start UPS | |
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| possible). | |
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| Your UPS has received a signal or command from the | |
Fault indicator and diagnostic | UPS shutdown due to a | attached computer. If this was inadvertent, ensure the | ||
indicators C and E are | command from the | communication cable used is correct for your system. For | ||
illuminated. |
| communications port(s). | assistance, contact your local dealer, Liebert | |
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| representative or the Liebert Worldwide Support Group. | |
Fault indicator and diagnostic |
| UPS requires service. Contact your local dealer, Liebert | ||
indicators D and E are | UPS charger fault. | |||
Representative or the Liebert Worldwide Support Group. | ||||
illuminated. |
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AC Input indicator is On & | On Internal Bypass to notify | Move manual bypass switch to the Bypass position, then | ||
user to move manual | ||||
diagnostic indicators A, C and | follow the instructions for replacing the UPS power module | |||
maintenance bypass switch | ||||
E are illuminated. | (see 12.2 - UPS Power Module Replacement). | |||
to Bypass position. | ||||
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| Check battery connections, completely power down and | |
AC Input indicator is On & | Battery source is not | restart UPS. | ||
NOTE: If the battery circuit opens while the UPS is | ||||
Battery indicator is flashing. | available; continuous horn. | |||
running, it will be detected when the next battery test is | ||||
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| performed. | |
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| Bypass voltage is present, | The AC input powers the PFC input and serves as the | |
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| bypass source. If the AC is present but the voltage or | ||
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| but is disabled for use | ||
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| frequency exceeds the acceptable range for safe | ||
Bypass indicator is flashing. | because the voltage or | |||
operation with a load, the bypass will be disabled and this | ||||
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| frequency is outside | ||
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| indicator will flash, indicating that the bypass is | ||
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| acceptable limits. | ||
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| unavailable. | ||
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41
