Zenith Data Systems MT2000 - Manual (Page 139)

5-51
Upgrades and Options
Swapping Out a Fan Module
This procedure describes swapping out a faulty fan
module from one of the five hot-swap fan bays.
The system has five hot swappable fan modules housing
a total of six fans (two fans in one module). The failed
fan module can be easily removed or replaced without
turning power off. Each fan module has a fan alarm
LED and each fan is redundant in configuration. If one
fan fails, its associated fan changes its rotating speed
to high. Figure 5-24 shows removing fans from the
front of the chassis and Figure 5-25 shows removing
fans from the rear of the chassis.
Note: To order a new fan module contact your sales
representative or dealer.
■ If the system status LED indicator on the front of
the system unit is amber (abnormal condition), it
can be indicating a faulty fan condition. Each fan
module alarm LED (lite steadily) can then be
checked to pinpoint which fan module is faulty and
needs to be removed. Follow the procedure described
in this section to remove the faulty fan module and
swap in a good one.
Note: Swapping Fan Modules without turning off
power. This is one of the few system procedures that is
safe to do with the system power left on.
1. If the fan module being removed is located in the
front of the system unit continue, otherwise go to
step 4.
2. If locked, unlock and open the left front exterior
door.
3. Remove the front plastic cover, refer to Installing a
5 1/4-Inch Device or 3 1/2-Inch Diskette Drive as
described earlier in this chapter.
4. Loosen the two thumb screws that secure the fan
module to the chassis.