Cummins Onan 5500 question
Hi all, I have a new toy hauler with a Cummins Onan 5500 generator model HGJAB built in. When operating with a load it runs really nice and smooth but when at idle with little load it throttles up and...
Forum Discussion
Do you see any service fault codes? There are dozens of them.
The HGJAB 5500 provides extensive diagnostics
by causing the status indicator light on the Control
Switch to blink in coded fashion. Following a
fault shutdown, the indicator light will repeatedly
blink 2, 3 or 4 blinks at a time.
• 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.
• Four blinks indicates that cranking exceeded
30 seconds without the engine starting.
The HGJAB 5500 provides extensive diagnostics
by causing the status indicator light on the Control
Switch to blink in coded fashion. Following a
fault shutdown, the indicator light will repeatedly
blink 2, 3 or 4 blinks at a time.
• 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.
• Four blinks indicates that cranking exceeded
30 seconds without the engine starting.
