Trouble locating and clearing procedures (continued) 1-203
DMS-100 Family NA100 Trouble Locating and Clearing Procedures Volume 2 of 2 LET0015 and up
Replacing a fan in a 28-in. frame
(continued)
Replacing a fan in a 28-in. frame
At the front of the frame
1
Turn ON the override switch for the fan alarm on the frame supervisory panel
(FSP).
2
Remove the filter panel at shelf 04.
3
To determine the fan that has faults, look from below the fan tray.
4
Remove the side rails on the frame.
5
Remove the four screws on each side of the cooling unit.
6
Turn OFF the two switches on each of the inverter cards.
DANGER
Risk of injury
Avoid contact with the cabinet wiring to prevent risk of
electrocution.
DANGER
Loss of frame cooling
Disconnection of the fan for an extended period of time can
cause the equipment in the frame to overheat.