[ The PC Guide | Troubleshooting and Repair Guide | The Troubleshooting Expert | Troubleshooting Specific Components | Troubleshooting Power Sources and Power Protection Devices ]

• If the unit is making any noises or has LEDs flashing in strange configurations, consult the manufacturer's technical support.
• The unit may be overloaded. If a 400 kVA unit will support your system for 5 minutes on battery backup, this does not mean that a 200 kVA unit will necessarily support it for 2.5 minutes. Once a unit gets too much load on it, it may not work at all when the power goes out. You will need a more powerful unit in this case.
• Check the unit physically to make sure that everything is connected properly, there are no tripped circuit breakers, etc.
• Try plugging the PC into a different socket in the device and see if that solves the problem. If it does, the device has a failure with that particular socket and it needs to be repaired or replaced.
• The batteries could be damaged, defective, or discharged. Follow the manufacturer's instructions for ensuring that the batteries are fully charged and see if the problem works properly.
• Consult with the manufacturer of the device for technical support.

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