Trouble locating and clearing procedures (continued) 1-67
DMS-100 Family NA100 Trouble Locating and Clearing Procedures Volume 2 of 2 LET0015 and up
Repairing and replacing NT3X90AB cooling units
(continued)
10
Do you have a blown fuse?
At the PDC frame
11
Replace the fuse in the PDC with a new one.
12
Replace the filter in the grill.
13
Turn OFF the FAN FAIL OVERRIDE switch.
Go to step 79.
At the front of the frame
14
Remove the screws that secure the side rail covers to the frame.
15
Remove the eight screws that secure the brackets to the sides of the cooling
unit. To remove the screws, use a 5/16-inch ratchet and extension.
If
Do
yes
step 11
no
step13
WARNING
Incorrect fuse values
Use replacement fuses of the correct rating, or damage to the
equipment can result.
If the FAN FAIL lamp is
Do
off
step12
on
step13
If your company procedures
Do
direct you to do repairs
step 14
do not direct you to do repairs
step 64