Applicable Systems
Symmetra LX
Symptoms
The neutral connection is missing on the UPS input. Output voltage may be unstable.
Possible Causes
- Neutral wire disconnected or broken
- Neutral bonding issue in the distribution panel
Troubleshooting Steps
- Step 1: Check the neutral connection at the UPS input
Neutral wire is disconnected - Step 2: Reconnect the neutral wire and verify continuity
Neutral connection is restored
How to Reset
To reset: Restore the neutral connection, then restart the UPS.
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Source: APC Smart-UPS User Manual, Schneider Electric/APC
Category: UPS
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