User`s guide

Troubleshooting
35
4.9.1 Power Supply/Cooling Module
4.9.1.1 Removing the Module
Warning Do not remove the faulty Power Supply/Cooling module unless you have a replacement unit of the
correct type ready for insertion.
If a power supply unit or its fan is faulty, you must replace the whole power supply/cooling module.
If you have two or three power supply units installed, you can continue working while replacing the faulty module.
1 If you have more than one power supply unit installed, make sure you identify the faulty module correctly.
2 Remove the power cord from the faulty Power Supply/Cooling module.
3 Remove the earth screw and washer from the module front panel.
4 Release and hold the retention latch.
5 Grip the metal flange on the power supply unit front panel firmly between finger and thumb and slide the unit out
of the Enclosure bay (Figure 4–2).
4.9.1.2 Inserting the Module
1 Push the replacement module gently home into the bay, ensure that it is fully engaged and that the retention latches
are engaged into the chassis.
2 Fit and tighten the earth screw and washer on the front panel to secure the module (Figure 4–3).
.
3 Check that the correct voltage range has been selected.
4 Insert the power cord.
Note The alarm will sound until the new Power Supply/Cooling module is operating correctly.
Figure 4–2 Removing a power supply/Cooling module