Your onan generator won t start and the light blinks 3 times again and again.
Onan generator service fault 3.
If that happens to be the case the onan generator starts then shuts down issue could be taken care of by replacing the unit control board.
When the light blinks three times in a row it is indicating a service shutdown.
These rules may allow you to run your generator later at night in rv parks with noise limits too but you should know their rules rather than assuming you re already compliant.
Fault shutdown the indicator light will repeatedly blink 2 3 or 4 blinks at a time.
It will be set if the controller sees 19v or more at the genset.
That is 60 decibels of noise or less at a distance of fifty feet.
The service code looks like 13.
Portable generator onan 2400 service manual 56 pages portable generator onan mobile genset operator s manual 32 pages.
Pressing stop again will stop the blinking the two digit code con.
Nearly all onan generators also meet the national park service sound level requirement.
3 flashes a pause and then one flash tells you that your onan generator is going faster than 3 400 rpm.
Press the stop prime button 1 time to prompt a second two digit fault code.
Three blinks indicates a service fault.
This is an over voltage fault.
Only trained and experienced persons with knowledge of fuels.
What to do if my cummins onan generator blinks 3 times.
You can double check by pressing the stop button 3 times in 5 seconds.
Each cummins generator has a model spec number description which is shown on the serial number tag attached to the generator.
Here is a representation of the tag on onan qg 4000.
If field flash voltage seems pretty normal the regulator could be the source of problem which you could determine simply by running 12 volts through a diode to the regulator.
Press stop once to cause the two digit second level fault code to blink.
You need to get a secondary code from the generator.
Page 94 service check fault fault code 3 some genset service procedures present hazards that can result in severe personal injury warning or death.
The trick here is to make sure you do not confuse 13 with 31.