Nanni QLS 65T, User Manual

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77
S11 TROUBLESHOOTING
CAUTION !
If the engine part of the genset does not function properly, use the following chart to identify the cause. If the cause of
trouble can not be found, contact to Nanni authorized workshop.
Alternator troubleshooting has been addressed in the Alternator secton of this Operator Manual. Please refer to this
chapter in case of alternator fault.
NOTE !
Being generic, the table below may cover more items than contained in the engine genset you have. This list is not
exhaustive and is only an assistance in case of emergency.
PROBABLE CAUSES
The engine fails to start 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13
The engine starts but suddenly stops 1, 2, 3, 4, 5
The engine is difficult to start 1, 2, 3, 4, 5, 6, 8, 9
The starter motor is not turning or turn slowly 8, 9
The starter motor turns but the engine does not start 1, 2, 3, 4, 5, 6, 7
The engine does not reach its rated speed at wide open throttle 2, 3, 4, 5, 6, 7, 12, 14, 15, 16, 17, 26, 28
The engine operate unevenly
1, 2, 3, 4, 5, 6, 7, 14, 15, 16, 17, 18, 19, 20, 24, 28
The engine vibrates a lot 16, 27
Black exhaust smoke 4, 5, 14, 15, 16, 19, 20, 28, 29
White exhaust smoke 4, 5, 23, 25
High fuel consumption 4, 7, 14, 15, 16, 19, 20, 22, 28
The engine overheats / coolant temperature too high 14, 15, 16, 18, 19, 20, 21, 22, 28
The control lever is hard to operate 12, 14, 15, 16, 17, 26
No shift between ahead and astern 9, 11, 12, 16, 17, 26
Battery charge warning lamp comes on 8, 9, 11, 18
The numbers refer to the possible causes indicated on the following page.*
Contact a Nanni authorized workshop.