Replacing A Fan - Siemens S5-155U System Manual

Replacing a fan

Location of the fans
Before replacement
How to replace a fan
System Manual
C79000-B8576-C199-03
The three fans are situated at the bottom of the power supply unit and
can be individually replaced during operation.
If you operate your power supply with a filter, you must first release
the filter subdrawer and pull it out before you can replace a fan (see
Section entitled "Replacing the filter mat").
The following steps are necessary to replace a fan:
Step Action
1 Place one hand under the fan you
wish to replace, and use the other
hand to insert a screwdriver
(DIN 5265, blade width
3.5-6.5 mm) into the unlock fan
opening.
2 - If this is not the right-hand fan subassembly, go directly
to Step 3 after removing the old fan subassembly.
- If this is the right-hand fan subassembly, proceed as
follows:
Step Action
2a Unscrew the rechargeable battery from
below.
2b Disconnect the connecting cable.
2c Insert the rechargeable battery in the
new fan subassembly (see section
entitled "Replacing the rechargeable
battery") and reconnect the connecting
cable.
Important
Ensure correct polarity.
3 Insert the new fan subassembly
with the tab at the rear into the
housing, and swivel it up.
Power Supply Units
Result
When the screwdriver
is pulled out, the snap
hook is released. By
pulling on the round
hole on the underside
of the fan sub-
assembly it swings
down and can be
pulled out.
The fan subassembly
engages.
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