32
Enter 7 and restart the switch. The switch reboots with empty configuration, and you can log in through
the console port without entering the password to check the configuration file for the user password.
Boot ROM password loss
Contact your sales agent for help.
Power system failure
The switch uses the system status LED (PWR) on the front panel to show how the power system of the
switch is operating. If the system status LED is off, a power supply failure has occurred. Check the
following items:
• The power cord is well connected to the switch, and the AC receptacle on the switch and the AC
power receptacle are normal.
• The external AC power supply system is operating properly.
• The operating temperature of the switch is normal, and the power module has good ventilation
(over-temperature can cause a power module to stop working and enter the protection state).
NOTE:
If the problem persists, contact your local sales agent or service engineer.
Fan failure
You can look at the system status LED and the seven-segment LED of an S3100V2-52TP switch to identify
a fan failure. If both LEDs are behaving as described in Table 5,
a fan failure occurs.
Table 5 LED behaviors for fan failure
LED Mark State
System status LED PWR Steady red
Seven-segment LED Unit
The LED displays F for fan failure.
The S3100V2-52TP Switch uses fixed fans. If a fixed fan failure occurs, you cannot solve the problem
yourself. Contact your sales agent or service engineer.
NOTE:
To ensure the normal operation of the switch, contact the local sales a
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