Checking The Redundant Cooling System Status; Checking The Redundant Cooling System Alarms; Removing A Cooling System Component; Returning Redundant Cooling System Components - Juniper JUNOS - NETWORK OPERATION GUIDE REV1 Network Operation Manual

The command output shows the fans, impellers, or blowers monitored for the router
What It Means
type. The command output displays the fan, impeller, or blower status and the
spinning speed. The status can be OK , Testing (during initial power-on), Failed , or
Absent
speed.

Checking the Redundant Cooling System Status

For more information about checking the status of cooling system components, see
Action
"Checking the Cooling System Status" on page 267.

Checking the Redundant Cooling System Alarms

For more information about checking the cooling system alarms, see "Checking the
Action
Cooling System Alarms" on page 269. For more information about conditions that
trigger cooling system alarms, see "Display the Current Router Alarms" on page 61.

Removing a Cooling System Component

For more information about removing or swap testing cooling system components,
see "Replacing a Cooling System Component" on page 273.

Returning Redundant Cooling System Components

To return a cooling system component, see "Return the Failed Component" on
Action
page 86 or the appropriate router hardware guide.
Bottom Right Middle fan OK
Bottom Right Rear fan OK
Fourth Blower from top OK
Bottom Blower OK
Middle Blower OK
Top Blower OK
Second Blower from top OK
. Measurement indicates if the fan or impeller is spinning at normal or high
Chapter 39: Monitoring Redundant Cooling System Components
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
Spinning at normal speed
Checking the Redundant Cooling System Status
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