Troubleshooting – Status and Alarm Messages
Display Message | Meaning | Corrective Action |
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System Not Synchro- | The system cannot synchronize to | Option 1: Decrease the input fre- |
nized to Bypass. | bypass. The mode may not be avail- | quency sensitivity. |
| able. | Contact APC Customer Support |
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| (see back cover). |
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| Option 2: Correct the bypass input |
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| voltage to provide acceptable voltage |
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| on frequency. |
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UPS In Bypass Due To | The UPS has transferred to Bypass | Contact APC Customer Support |
Fault. | Mode because a fault has occurred. | (see back cover). |
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UPS In Bypass Due To | The load exceeded the power | Decrease the load. |
Overload. | capacity. The UPS has switched to |
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| Bypass Mode. |
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UPS Is Overloaded. | The load exceeded the system power | Option 1: Decrease the load. |
| capacity. | Option 2: Check the load distribution |
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| on the 3 phases via the display. If the |
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| load is unevenly distributed, adjust |
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| the load distribution. |
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Weak Batt(s) Detected. | One or more weak batteries detected. | Replace the weak batteries. |
Reduced Runtime. |
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XR Battery Fuse Blown. | XR Battery Fuse blown. Runtime is | Replace the blown fuse in XR Enclo- |
| lower than expected. | sure (only applicable if your installa- |
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| tion includes an XR |
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| Enclosure). |
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