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We have an onan 5500 in our rv. It is 2 yrs old. We are in
We have an onan 5500 in our rv. It is 2 yrs old. We are in it now. The generator is showing a code 45 we have discounted battery and hooked back up. Generator will start and die immediately then will … read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
I have a onan 5500 marqius gold generator i can start it
i have a onan 5500 marqius gold generator i can start it mometarly with startfluid but it does't stay running … read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
I have an onan 5500 that will not start. I just put a new
I have an onan 5500 that will not start. I just put a new starter and board on it and still nothing? It's got 13.7 volts to the starter but when you push the start button the volts go down to .46?… read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
I have an onan 5500 marquis gold just started doing this it
I have an onan 5500 marquis gold just started doing this it will run about 10 min and then shut down i allow it to cool down and it will fire up again oil is good and level is fine aircleaner good low… read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
I am getting a code 36. Onan 5500 EVAP HGJAB. New plugs,
I am getting a code 36. Onan 5500 EVAP HGJAB. New plugs, fresh oil, new air filter. Tried starting fluid and it ran for a moment and stopped and threw the code again. What am I missing?… read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
I have an RV with a Onan generator Model GN 480 (5500
I have an RV with a Onan generator Model GN 480 (5500 watts). It is dead. If you hit the switch on the driver's console or even on the start switch on the generator itself there is no response. Not ev… read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
Curtis, I have a Onan 5500 Marquis Gold and I cannot get it
Hello Curtis, I have a Onan 5500 Marquis Gold and I cannot get it to run for very long. It appears to be getting too much fuel. Carb has been cleaned, plugs changed, fuel pump is working and the gas i… read more
Curtis B.
Curtis B.
Technician
Associate Degree
16,136 satisfied customers
I have a food truck and i am looking into buying a new
I have a food truck and i am looking into buying a new generator. My food truck can run easy off of 5500 watts right now. i have an onan marquis 7000 right now but the voltage regulator keeps blowing … read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
Have a 2014 5500 onan rv Generator. Ran good the other day
Have a 2014 5500 onan rv Generator. Ran good the other day . Try to crank it today and all it would do is make a loud clicking sound but would t start. Can you help me?… read more
Curtis B.
Curtis B.
Technician
Associate Degree
16,136 satisfied customers
I have an onan 5500 marquis gold in my toy hauler that is having
I have an onan 5500 marquis gold in my toy hauler that is having problems. Seems to be a lot of that on these forums! Anyway it's got almost 1000 hours on it now. Was having problems with it starting … read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
I have a 5500 in my RV. I want to hook up a battery just to
I have a 5500 in my RV. I want to hook up a battery just to start the generator because several times now my RV batteries have run to low to start the generator. Does the onan have a charging system o… read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
i have a onan genset marquit was hard to stsrt but ran fine
i have a onan genset marquit was hard to stsrt but ran fine once stsrted changed oil and spark plugs has not started since new battery, plenty gas. has no fire at the plugs.… read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
Have a fifth wheel with 5500 k onan generator been out of country(military)
Have a fifth wheel with 5500 k onan generator been out of country(military) tried to start 2 days ago will fire for 30 seconds then quits. Had regulator and hoses replaced. Oil chnaged 2 yrs ago. What… read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
i have a 5500 onan in my motor home, generator runs fine while
i have a 5500 onan in my motor home, generator runs fine while parked, but will cut off after a few miles of driving, will start right back up, few more miles it will cut off. oil level is good, new f… read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
I recently purchased a used rv with a Emerald III generator,
I recently purchased a used rv with a Emerald III generator, model no. 6.5 nhe. It is verry difficult to start, when it does start it seems to be missfiring on i cylinder.I've switched plug wires arou… read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
I own an Onan 5500 Marquis Gold. It starts but runs real rough....like
I own an Onan 5500 Marquis Gold. It starts but runs real rough....like a choke is sticking, then dies. I've pulled the carb and cleaned it entirely. Didn't see any plugs or gump. I've added Seafoam to… read more
Hank F.
Hank F.
Technician
16,169 satisfied customers
I have a onan 5500 in my 06 gulfstream class c 34 motor home.
I have a onan 5500 in my 06' gulfstream class c 34' motor home. I just back from warranty work in Indiana went to start it (ONAN) up after several minutes (15) it finally fired to a cloud of diesel sm… read more
Jon K.
Jon K.
Small Engine Diagnostic Expert
Some College, military training,
2,995 satisfied customers
hi i have an onan marquis 5500 and when i hit the start button
hi i have an onan marquis 5500 and when i hit the start button i have spark at the spark plug for a split second and then no spark . if push the the start button and hold to start it loses spark… read more
Tech4you
Tech4you
Electrician/Mechanic
Associate Degree
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