March 2021
Page 104 of 143
59812-K007 Rev 17
Business Confidential
5.2.6
Fan Fault
The fan fitted to the detector head is required to draw the air from the engine into the detector sample
chamber. The detector continuously monitors the operation of the fan and communicates a fault to the
Control Unit if the fan stops rotating.
To identify which detector is at fault, from the Engine Overview Screen, Figure 148, select the required
engine.
Figure 156
Engine Screen Detector Fault
Select the faulty detector to access the Detector Status Screen.
Figure 157
Detector Status Screen Fan Fault
Identify the fault being indicated, in this case a Fan fault.
Alternatively, an inspection of the engine event log, see section 3.6, will list the event:
Fan Fault
Detector X
Having established which detector is in fault the following steps should be followed.
1.
Using a 4mm hexagon key, unscrew 2 off screws from the underside of the Detector head. The
screws are self-retaining.
