Oracle SPARC T5-2, Service Manual

Page: 83 / 186

Locate a Faulty Fan Module
Locate a Faulty Fan Module
View the following LEDs, which are lit when a fan module fault is detected.
■
Fan Module (FAN) Fault LED on the front of the server. See “Front Panel Components
(Service)” on page 13 .
■
Fan Fault LED on or adjacent to the faulty fan module. See “Fan Module
LEDs” on page 82 . Each fan module contains an LED. When the amber Service
Required LED is lit, a fault has occurred on that fan module.
Note - The front and rear panel Service Action Required LEDs are also lit when the server
detects a fan module fault. The server Overtemp LED might also light if a fan fault causes an
increase in server operating temperature.
Related Information
■
“Front Panel Components (Service)” on page 13
■
“Rear Panel Components (Service)” on page 15
■
“Extend the Server to the Service Position” on page 63
■
“Remove a Fan Module” on page 83
■
“Detecting and Managing Faults” on page 31
Remove a Fan Module
Caution -
While the fan modules provide some cooling redundancy, if a fan module fails,
replace it as soon as possible to maintain server availability. When you remove one of the fans
in the rear row (fans 3, 4, or 5), you must replace it within 30 seconds to prevent overheating of
the server.
Caution -
The fan module contains hazardous moving parts. Unless the power to the server
is completely shut down, replacing the fan modules is the only service permitted in the fan
compartment.
A customer can perform this procedure while the server is running. See “Component Service
Categories” on page 57 for more information about hot-service procedures.
1. Prepare for servicing.
a.
Attach an antistatic wrist strap.
Servicing Fan Modules 83