3.3 Cooling Fan Inspections
3-3
3.3 Cooling Fan Inspections
Inspect the cooling fans as required. A defective fan can cause the NX100 to malfunction
because of excessive high temperatures inside.
The interior circulation fan and backside duct fan normally operate while the power is turned
ON. Check if the fans are operating correctly by visual inspection and by feeling air moving
into the air inlet and from the outlet.
Cooling Fan Construction (Small-capacity NX100)
When the message of the "Cooling fan in control box stopped" is displayed, it may be
caused by the error occurrence at the cooling fan (JZNC-NZU01) inside the control power
supply (CPS-420F) of the CPU unit.
The playback operation (execution of the JOB) cannot be performed when the error occurs
at the cooling fan. In this case, the alarm 4119 "FAN ERROR (IN CONTROL BOX)" occurs
10 hours later.
When the message of the "Cooling fan in control box stopped" is displayed, carry out an
inspection and the replacement of the cooling fan on the CPU rack as soon as possible.
NOTE
Air intake
Air outlet
Backside duct fan
Interior circulation fan
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