Furuno ECDIS FMD-3100 Installation Manual page 18

1. MOUNTING
1.1.7 How to replace the fan
The life of the fan is approximately five years. Replace the fan when any of the follow-
ing occurs.
• The recommended replacement interval of five years has passed.
• The fan emits strange noises when the processor unit is powered.
• The Alert 30002 "Processor Unit Fan1 Fan No Rotation" is generated.
You will need a Torx screwdriver (T10) to do the replacement.
1. Turn off the power to the FMD-3100.
2. On the rear panel, unfasten the four screws fixing the fan cover.
3. Referring to the figure below, unfasten two fixing screws and disconnect the fan
connector, in that order, to remove the fan.
4. Connect the fan connector of the new fan.
5. Set the fan to the unit, then fasten the two fixing screws.
6. Close the fan cover.
1-10
Fan
: Screw
: Fan connector