How to Replace Hot-Plug Fans in an HPE ProLiant DL360 Gen10

Your HPE ProLiant DL360 Gen10 is running production workloads, but one of its cooling fans has reported a fault. You need to perform hot-plug fan replacement without shutting down the host, yet removing the wrong module or working through an existing thermal warning could put the server at risk.

This guide explains how to confirm that live service is safe, identify the correct fan, install a compatible replacement, and verify the result through HPE iLO 5. You will know when no-downtime maintenance is appropriate, what to check before touching the chassis, and when to stop and contact HPE support.

Can you replace a DL360 Gen10 fan without shutting down?

How hot-plug and fan redundancy work

In a correctly configured HPE ProLiant DL360 Gen10, the cooling system can continue operating while you remove one fan module. This depends on the required redundant fan configuration being installed and the remaining fans operating normally. Redundancy gives the server enough cooling capacity to tolerate a brief service action, but it does not make every fan-removal situation safe.

Hot-plug service means you remove and replace the module while the server remains powered on. It does not mean you can leave the bay empty indefinitely. Have the compatible replacement ready, minimize the time the fan is out, and service only one module at a time.

When a no-downtime replacement is not safe

Do not proceed if iLO reports multiple failed fans, elevated temperatures, an active thermal warning, or an unsupported fan arrangement. Also stop if the server is heavily loaded and its cooling margin is already reduced. Check the server warranty and service guide for the approved configuration and procedures before opening the chassis.

Action: Proceed only when one fan is failed, all other fans are healthy, and iLO shows normal thermal headroom.

What you need before starting

Compatible replacement fan modules and service documentation

Obtain the exact replacement fan kit or spare fan module specified for your server configuration. Do not assume that a physically similar fan is electrically or mechanically compatible. Use the server serial number and spare-part information in HPE documentation to match the part. Keep the server warranty and service guide available so you can confirm the approved fan layout and handling procedure.

Access to HPE iLO 5 and the Integrated Management Log

Sign in to HPE iLO 5 with an account that can view hardware health and logs. Open the fan, temperature, and system health pages, then review the Integrated Management Log for recent fan or thermal events. If your environment uses HPE OneView or HPE InfoSight, check those dashboards as an additional source of alerts, but use iLO as the local authority during the replacement.

ESD protection and a clear airflow path

Use an antistatic wrist strap, handle the replacement by its housing, and keep the server intake and exhaust areas unobstructed. Avoid placing packaging, cables, or tools in front of the chassis. Do not begin until the new module is within reach.

Action: Stage the matched fan, ESD protection, documentation, and an open airflow path beside the powered-on server.

How to identify the failed fan

Use iLO 5 health monitoring

In HPE iLO 5, open the system information or health summary and locate the cooling or fan section. Identify the bay number, status, and any reported speed or presence error. Record the exact location before removing anything. Review the Integrated Management Log and recent events to determine whether the issue is a persistent failure or a transient alert.

Read the front-panel health and fan indicators

Check the server’s front-panel health indicator and any fan-related status indicators. A warning or amber condition supports the iLO diagnosis, but the front panel usually does not provide enough detail to identify every fan bay by itself. Treat a red health state, overheating alarm, or rapidly rising temperature as a reason to stop.

Confirm the correct fan location and replacement part

Compare the iLO location with the chassis fan layout in the service documentation. Confirm that the failed unit is a removable fan fault, not a power, system-board, sensor, or airflow problem. Match the spare part number and connector style before opening the fan bay. If iLO identifies more than one failed module, do not attempt live replacement.

Action: Write down the failed bay and matching spare-part number, then verify that only one fan is affected.

How to replace the hot-plug fan step by step

Prepare the server while it remains powered on

Keep the server running and confirm once more that the other fans are operating normally. Put on your ESD strap, remove loose items from the work area, and hold the replacement where you can reach it immediately. Do not open or remove additional components that could disturb system airflow.

1. Identify the failed fan bay from iLO and the chassis layout. Touch the chassis or an approved grounding point before handling the module.
2. Release the failed fan using the handle or latch described in the service guide. Pull straight upward or outward, depending on the bay design, without twisting the connector.
3. Keep the empty bay exposed for the shortest possible time. Do not place the removed fan across an intake or exhaust opening.
4. Align the replacement fan with the guide rails and connector. Press it firmly into the bay until the latch closes and the module is flush with neighboring fans.
5. Wait briefly for iLO to detect the new fan. Confirm that its speed or presence status changes to OK before moving on.

Never remove two fans together during a live service operation. If the replacement does not seat easily, stop rather than forcing the connector or housing.

Action: Replace exactly one module, confirm it is fully latched and flush, and leave the server running.

How to verify the server after replacement

Check fan status and temperature readings in iLO 5

Return to the cooling and thermal pages in HPE iLO 5. The replacement fan should show present, operating, or OK, with a valid speed reading if the interface provides one. Check the inlet, exhaust, and system temperature readings for stable values. The server thermal status should return to a normal or green state, not merely lose the original fan alarm.

Review the Integrated Management Log and Active Health System data

Open the Integrated Management Log and confirm that the new event records the fan as restored or replaced. Look for continuing fan, temperature, or power warnings. If necessary, review Active Health System data through iLO for a longer history. HPE OneView and HPE InfoSight can help identify recurring patterns across managed systems, while Smart Storage Administrator is useful for storage health but does not replace iLO cooling checks.

Confirm alerts clear and the operating system remains stable

Verify that monitoring alerts clear, the operating system is still responsive, and workloads show no signs of thermal throttling or unexpected errors. Do not close the maintenance task until the replacement remains healthy for several minutes.

Action: Record the final fan status, temperatures, log result, and time of replacement in your maintenance notes.

What to do if the replacement fan does not work

Check seating, orientation, and compatibility

If iLO still reports a fan fault, power is not the first thing to check. With the server still in its approved service state, confirm that the module is in the correct bay, oriented correctly, fully inserted, and latched. Compare its spare-part number with the server documentation. A fan that fits physically can still be incompatible.

Look for airflow obstructions or additional fan faults

Inspect the intake, exhaust, fan cage, and internal air baffles for cables, dust, packaging, or misplaced components. Recheck every fan in iLO because a second failure may have appeared or been missed during the first diagnosis. Watch temperature readings rather than relying only on the absence of an audible alarm. If the server’s cooling margin is declining, reduce workload if your operating procedures allow it.

Escalate to HPE support when thermal warnings persist

Do not repeatedly reseat a fan during a worsening thermal event. Capture the server serial number, fan bay, spare-part number, iLO screenshots, Integrated Management Log entries, and Active Health System data. Contact HPE support if the warning persists, the replacement is not detected, or the system reports a board, sensor, or power issue.

Action: Stop live servicing and escalate immediately if temperatures rise, multiple fan faults appear, or the replacement remains undetected after a careful seating check.

A DL360 Gen10 can support live fan service when its required redundant fan configuration is healthy and only one module has failed. Confirm the bay in iLO, stage the exact approved spare, replace one module without blocking airflow, and verify fan status, temperatures, logs, and operating-system stability afterward. If thermal warnings persist, stop troubleshooting in place and contact HPE support with the recorded diagnostics. With those checks in order, you can complete the repair confidently while keeping workloads online.