60
• The PoE module is correctly installed and seated in the switch.
If the problem persists, contact HP Support for help.
To replace a PoE module, see "Installing/removing a PoE module."
Fan failure
You can look at the system status LED and the seven-segment LED of a 5800 or 5820X switch to identify
a fan failure. If both LEDs are behaving as described in Table 12,
a fan failure occurs.
Table 12 LED behaviors that identify a fan failure
LED Mar
System status LED SYS Steady red
Seven-segment LED Unit
The LED displays F for fan failure.
Built-in fan failure
The 5800-48G (1 slot), 5800-48G TAA (1 slot), 5800-48G-PoE+ (1 slot), 5800-48G-PoE+ TAA (1 slot),
5800-24G-PoE+, 5800-24G-PoE+TAA, 5800-24G, and 5800-24G TAA switches use built-in fans. If a
fan failure occurs, contact the HP technical support for help and do not attempt to fix the problem
yourself.
Hot swappable fan tray failure
CAUTION:
You can replace a hot swappable fan tray without powering off the switch. To prevent overheat, replace
the failed fan tray within 2 minutes for the 5800-48G-PoE+ (2 slots), 5800-48G-PoE+ TAA (2 slots),
5800-24G-SFP (1 slot), 5800-24G-SFP TAA (1 slot), 5820X-24XG-SFP+, 5820X-24XG-SFP+ TAA,
5820X-14XG-SFP+ (2 slots), and 5820X-14XG-SFP+ TAA (2 slots) switches.
CAUTION:
The 5800AF-48G and 5820AF-24XG switches require two same direction air flow fan trays to function
correctly.
• Do not operate the system with only one fan tray for more than 24 hours.
• Do not operate the system without any fan tray for more than 2 minutes.
• Do not operate the system outside of the temperature range 0°C to 45°C (32°F to 113°F) degrees.
Failure to comply with these operating requirements might void the warranty.
This section applies to the 5800-48G-PoE+ (2 slots), 5800-48G-PoE+ TAA (2 slots), 5800-24G-SFP (1
slot), 5800-24G-SFP TAA (1 slot), 5800AF-48G, 5820AF-24XG, 5820X-24XG-SFP+, 5820X-24XG-SFP+
TAA, 5820X-14XG-SFP+ (2 slots), and 5820X-14XG-SFP+ TAA (2 slots) switches.
To replace a failed fan tray, see "Installing/removing a fan tray."
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