78
30AW
Diagnostic
6
Fault code 6 – Loss communication to NUI control
NO
Are the connections of NUI and GMC board
correct?
Check and correct the connections
Are all cables and connectors correctly
tted?
Check cabling between NUI and GMC
board
Check GMC Board - if defective,
replace
Check NUI error - if defective, replace
Fault code 7 – NUI control Room sensor fault
Is the sensor correctly connected?
Are the resistance characteristics of the
temperature sensor normal?*
Correctly connect the Sensor
Replace defective Sensor
Check NUI - replace if defective
*Check resistance tabl e
YES
NO
YES
NO
NO
YES
YES
SM_30AW.indd 78 14-03-2011 14:45:31
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