Have you checked what 'Fault Code' is being indicated at time of shutdown?
Fault Codes
The genset controller provides extensive diagnostics by causing the status indicator light on the Control Switch to blink in a coded fashion.
Following a fault shutdown, the indicator light will repeatedly blink one, two, three or four blinks at a time.
• One blink
indicates shutdown due to high engine coolant temperature.
• Two blinks
indicates a low oil pressure fault.
• Three blinks
indicates a service fault.
Press Stop once to cause the two-digit, second-level fault code to blink. (Pressing Stop again will stop the blinking.)
The two-digit code consists of 1, 2, 3, 4 or 5 blinks, a brief pause,
and then 1 to 9 blinks.
The first set of blinks represents the tens digit and the second set of blinks the units digit of the fault code number.
For example, Fault Code No. 36 appears as:
blink-blink-blink—pause—blink-blink-blink-blink-blink-blink— long pause—
repeat
• Four blinks
indicates that cranking exceeded 30 seconds without the engine starting
Here is a Troubleshooting Guide that has other indicators PLUS second Level Faults
LINKDO some Troubleshooting.......
