Proware EP-4246J-S6S6 User Manual - page 32
SAS to SAS/SATA JBOD Subsystem
32
User Manual
3.2.2 Replacing Power Supply Fan Module
When replacing a failed power supply fan module (PSFM), please follow these steps:
1. Turn off the Power On/Off Switch of the failed PSFM.
2. Disconnect the power cord from the AC Inlet Plug of PSFM.
3. Loosen thumbscrews of the PSFM.
4. Use the handle to pull out the defective PSFM.
5. Before inserting the new PSFM, make sure the Power On/Off Switch is on "Off"
state.
6. Insert and slide the new PSFM in until it clicks into place.
IMPORTANT: When the subsystem is online and a Power Supply
fails, and the replacement Power Supply module is not yet
available, the failed Power Supply Module can be replaced with
the Plate Cover. This is to maintain proper airflow within the
enclosure. (Refer to next section)
When replacing a failed component online, it is not
recommended to remove the failed component for a long period
of time; proper air flow within the enclosure might fail causing
high controller/disk drive temperature.
7. Connect the power cord to the AC Inlet Plug of PSFM.
8. Tighten the thumbscrews of the PSFM.
9. Turn on the Power On/Off Switch of the PSFM.
NOTE: After replacing the Power Supply Fan Module and turning
on the Power On/Off Switch of the PSFM, the Power Supply will
not power on immediately. The Fans in the PSFM will spin-up until
the RPM becomes stable. When Fan RPM is already stable, the
RAID controller will then power on the Power Supply. This
process takes more or less 30 seconds. This safety measure helps
prevent possible Power Supply overheating when the Fans cannot
work.