Vertiv | NetSure Rectifier Module User Manual (UM1R483500e) | Rev. R
TROUBLESHOOTING AND REPAIR
Troubleshooting
Rectifier Current Sharing Imbalance
When multiple rectifiers are operating in parallel and the load is greater than 10 %, if the current sharing
imbalance among them is greater than 3 %, check if the rectifier is properly seated in the shelf.
If the current sharing imbalance still persists following the verification suggested above, replace the rectifier
exhibiting the current imbalance.
Rectifier Fault Symptoms and Troubleshooting
The fault indicators that can be displayed by the rectifier are as follows. Refer to Table 3 for a list of possible
causes and corrective actions.
• Power Indicator (Green) OFF
• Protection Indicator (Yellow) ON
• Protection Indicator (Yellow) Flashing
• Alarm Indicator (Red) ON
• Alarm Indicator (Red) Flashing
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