Codan 6700 Series - Figure 24: BUC Fan Fault Diagnosis Chart 2

Maintenance and fault finding
Block Up Converter Systems 6700/6900 series User Guide 95
Figure 24: BUC fan fault diagnosis chart 2
BUC fan fault
diagnosis chart 2
Check for obstruction
or seized bearings on
stationary fan(s).
OK?
Check for DC power at
the fan (Test E)*.
OK?
* Refer to test
procedures
Repair/replace
fans as
necessary.
Fan faulty.
Repair/replace
fans as
necessary.
BUC faulty.
Refer to Codan.
Yes
No
Yes
No