I can only guess you have an Onan genset. If so, pull the codes out of it through a series of blinks. The code will tell you the problem area.
The genset controller provides extensive diagnostics by causing the status indicator light on the control Switch to blink in a numeric code. Following a fault shutdown, the indicator light will repeatedly blink 3 blinks or 4 blinks at a time.· 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, or 4 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 15 to 20 seconds without the engine starting.· Note: Fault Code Nos. 3 and 4 are first level faults. Avoid interpreting them as second-level Fault Code Nos. 33 and 44, which have not been assigned as fault codes. Restoring Fault Code Blinking - The fault code stops blinking after five minutes. Press Stop three times within five seconds to restore blinking. Note that the last fault logged will blink, even after the condition that caused the shutdown has been corrected.
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