Onan Generator 5500 Issue

[ss340duster]

Primitive camped this weekend and generator worked great 1st day and night came back for 2nd night and Generator would Start right up and run about 30 to 45 Seconds max and would shut down just like you turned it back off i tried it several times and it kept doing same thing i made sure nothing extra was plugged up and i also tried with both breakers on generator turned off as well and still would not run longer than 30 to 40 seconds any ideas ?

[ss340duster]

I ran it for about 10 mins without door I would have never guessed the door would act as a cooler for the gen

[ss340duster]

I ran it for about 10 mins without door I would have never guessed the door would act as a cooler for the gen

[mci7]

These units have a oil pump, despite the incorrect report, and when the oil is down some you make a turn, they have been known to loose oil pressure and stop.
Running low and having it stop for low oil pressure results in you playing the $$$ game, sooner or later you will loose weight.
Dave M

[bounder39zman]

These sets only hold two quarts of oil, so best to keep at full mark to avoid problems like you had.It does have low oil pressure shut-down switch, not low oil level. Glad you got it fixed, Btw be sure to have service door on when running gen....exhaust system (muffler) will get severely overheated without door on.

[prstlk]

Go to the flashING lights on either the dash or unit. If you don't have the codes you can get them online. Flash blink etc will tell you whats up. Very accurate and will pinpoint your problem guickly.
Roll on

[bsinmich]

They use splash lube so when it splashed a little oil around the level probably dropped to stop the motor.

[ss340duster]

Update I changed the oil used the wix filter and mobile one synthetic 15w/50 oil and it's now purring like a kitten also I'm a old drag racer from many years and the synthetic oils are the real deal so thanks guys for the info

[ss340duster]

I have the 5.5 HGJAB -911
and it was very low on oil

[RDG]

ss340duster wrote:
If the low oil pressure cutoff is my problem are they a way to reset or will it be be automatic when I change oil and refill

Should be OK after you add (change) oil.
Bob

[ss340duster]

If the low oil pressure cutoff is my problem are they a way to reset or will it be be automatic when I change oil and refill

[ss340duster]

The cross reference for Onan oil filter P/N is 122-0836 and Wix filter is PN 57398 for future reference

[ss340duster]

2001 Winnebago Adventurer

[bounder39zman]

Which Model 5500 do you have? 5.5HGJAB, or the older 5.5BGM? Both have low oil pressure cut off switches. If you have later model (HGJAB) you can use the status light in start-stop switch to help diagnose. Anytime set shuts down and you did not push stop switch, it should give a fault code (series of light flashes) to tell what system is malfunctioning. Also, Onan oil filter P/N is 122-0836. Napa can cross ref. if you dont have Onan supplier near-by. Factory ships units with 15w-40 oil, and works well if your climate is warmer than Alaska North Slope

[ss340duster]

yes im gonna change the oil and filter and check gas line too, are they oil filter conversion chart on here so i buy filter at the local autoparts store and i see everyone recomends 15 w 40 or 20 w 50 oil also is synthetic a option too