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2 front or back error led flashes orange, Front or back error led flashes orange, 78 operating manual – FUJITSU BX900 S1 User Manual

Page 78: Troubleshooting and tips

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78

Operating Manual

BX900 S1

Troubleshooting and tips

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7.2

Front or back error LED flashes orange

If the front or back ID/error LED is flashing orange (see

section "Control and

display elements" on page 57

), one of the following errors may have occurred:

One of the power supply units has failed

The status LED of the power supply unit is not lit and/or the error LED of the
power supply unit flashes green if, for example, one of the following errors has
occurred in the power supply unit (see also

section "Indicators on the hot-plug

power supply units" on page 66

):

– General failure (warning or shutdown due to fan no. 1)
– Temperature exceeded (one of the fans in the power supply unit is not

working properly)

– Overcurrent
– Overvoltage or undervoltage
– The power supply unit is reaching the end of its life or its ambient thresholds

are being exceeded.

Ê

Check the status of the power supply unit and/or the fan-failure LEDs to
identify the defective module and replace it (see

section "Replacing the

power supply unit" on page 134

).

One of the fans in the fan module has failed

Although the system can still be used if one of the fans in the fan module fails,
you should:

Ê

Replace the defective fan module as soon as possible (see

section "Hot-

plug fan modules" on page 136

and

section "Replacing a fan unit" on

page 137

).

A switch blade has failed

The error LED of the switch blade lights up when a general error occurs.

Ê

Check the error LEDs of the switch blades to find out which blade has failed.

Ê

If the switch blade is still being shown as defective, replace it (see

section

"Installing a connection blade" on page 121

).