Onan info

Jeff Niceswanger · 08-09-2012, 04:37 PM

Thanks Rich
What has me puzzled is the fact it ran for one complete evening before it quit. But, you know machinery,its confusing .We are camping(wife/dogs are in a cabin,not the motor home) right now,with no internet service or phone. The main office of this place has Wi-fi, so I came up here a couple times now to check in with " the rest of the world". When we get back,I'll get back on this.., as this thing HAS to be fixed by Indy............'ll be in touch

Jeff Niceswanger · 08-10-2012, 09:28 PM

I am pretty sure I found it. One of the brushes was shot and not hitting the rotor all the way around .There was a spot about an inch long where it appeared to have not been hitting for a while. I took a scribe and pushed the brush up into the holder a little bit and it just stayed there,not returning. Rich, when I checked wires # 1 and 10 and got that 24 ohms, I made the mistake of not rotating the unit 360 degrees to be sure it was hitting everywhere. Amateurs mistake....I rechecked it, and it came and went severely. Onan in Columbus has the brushes and springs in stock, and We will pick them up and get this thing back together tomorrow, Thanks for all the help guys

Rich Biebel · 08-11-2012, 06:44 PM

Bad contact between the brushes and slip rings is one of the biggest things that can cause an issue like you have Jeff. If the brush does not contact the slip ring it will arc for a while and the arcing damages the surface of the copper......Clean it with some shop roll paper untill it is as clean as you can get it.

I have been working on a Miller 300 D Trailblazer-Diesel welder. Already have hours and hours in it, changed the rotor and PC control board.....and the board was already replaced once 6 months ago.....Weld output is intermittent at best.......I spent a good part of today trying to nail down the problem and find nothing that is clearly wrong.....but it doesn't work and I already have a pile of money in parts in it and a pile of time.....

Working with machines that produce electricity can be very very difficult....even for people that do it all the time like myself....

Hopefully you found your problem.....

Jeff Niceswanger · 08-11-2012, 09:36 PM

Well Well Well
Spoke too soon, I thought I had it fixed, but now it sets a different code, and still won't run without holding in start button. I now have hertz( 61 while holding button down)). I even have 14-20hz while the motor is being cranked, but I get a code 32. Low hertz while being cranked or something like that.Went ahead and PM'ed it while it was out. Plug, fuel filter, oil etc...I stuck it back in the back of the mini van and I going to take it to the dealer Monday. I checked everything I can think of, Stator/field ohms out (@35) perfect, brushes/rotor are 21 ohms. I have cleaned and tightened grounds and checked pins till I have had enough of it. I even stuck the old controller board back into be sure .. Same 32 code... I'll let you know what they find out.....

Rich Biebel · 08-12-2012, 02:28 PM

Working with machines that produce electricity can be very very difficult....even for people that do it all the time like myself....

I already said that but have to repeat it.....

Trust me when I tell you I have been there and done that as the saying goes....

I worked on a buddies 4KY earlier this year at home for the better part of a week at night after work.....I was just about to throw in the towel and than gave it another try.....Got it fixed and he is still using it now....probably today as there is a big race at Atco......

That code is a bit odd....Stators can test ok with an ohmeter and still cause problems.....Ohm testiing is not conclusive and I deal with this all the time..

Hopefully you found a place that can get it fixed for you...

supergas4 · 08-18-2012, 02:56 PM

how about a code 47 on a 5500- marqie

Rich Biebel · 08-27-2012, 07:21 AM

Quote:

Originally Posted by supergas4

how about a code 47 on a 5500- marqie

Code 47
Points to the ignition coils and wiring between them and the controller.
The coils are magneto style.....they make spark anytime the blower wheel passes them. They are grounded by the controller thru a small wire attached on the coil. Code 47 says the controller is not connected to the coils.

My experience tells me this is likely not the problem...and getting to the coils is a major job as the unit has to be completely disassembled....

I would check the white wires going down to the coils. They both have a connector on the upper section side. The controllers on these machines fail a lot.......That is more likely the problem....

It is a PC board in a holder/tray located inside the box where the start/stop is.....One weatherpak style connector......Those connectors can also cause problems....

Jeff Niceswanger · 09-05-2012, 05:02 PM

Quote:

Originally Posted by Jeff Niceswanger

Well Well Well
Spoke too soon, I thought I had it fixed, but now it sets a different code, and still won't run without holding in start button. I now have hertz( 61 while holding button down)). I even have 14-20hz while the motor is being cranked, but I get a code 32. Low hertz while being cranked or something like that.Went ahead and PM'ed it while it was out. Plug, fuel filter, oil etc...I stuck it back in the back of the mini van and I going to take it to the dealer Monday. I checked everything I can think of, Stator/field ohms out (@35) perfect, brushes/rotor are 21 ohms. I have cleaned and tightened grounds and checked pins till I have had enough of it. I even stuck the old controller board back into be sure .. Same 32 code... I'll let you know what they find out.....

Rich,
Took this to 2 different dealers. Both said the Stator was shot and wanted 1300 by one dealer and 2000 by the other. Cummins Bridgeway in Columbus sold us a complete new one for 2550. I guess I have a bunch of spare parts. This one is a model 4.0KY-FA 26100K. It looks identical to me but I'm sure some things are not interchangeable. Thanks for your help getting us through the generator blues.

Rich Biebel · 09-05-2012, 10:02 PM

Jeff thats a real good price for a new one....

I think we discussed it possibly being the stator.....

I have replaced them and it's always a repair that has to be weighed out.....

How old is the machine.....how many hours on it.....what kind of shape is it it....how well was it taken care of......

I think you will be good for quite a while.....

I have one to work on tomorrow.....Fuel pump or fuel line issue....

rognelson777 · 09-13-2012, 10:20 PM

Rich, not to change the subject but considering autostart for generator when coach batteries get low.

HAve you seen these and any problems. I know you only see the problems but any input would be helpful. We do some dry camping, do not like to keep generator running if I do not have too.

08-09-2012, 04:37 PM	#1
Jeff Niceswanger Senior Member Join Date: Jul 2003 Posts: 890 Likes: 679 Liked 1,019 Times in 367 Posts	Re: Onan info Thanks Rich What has me puzzled is the fact it ran for one complete evening before it quit. But, you know machinery,its confusing .We are camping(wife/dogs are in a cabin,not the motor home) right now,with no internet service or phone. The main office of this place has Wi-fi, so I came up here a couple times now to check in with " the rest of the world". When we get back,I'll get back on this.., as this thing HAS to be fixed by Indy............'ll be in touch __________________ Jeff Niceswanger 3740 SS

08-10-2012, 09:28 PM	#2
Jeff Niceswanger Senior Member Join Date: Jul 2003 Posts: 890 Likes: 679 Liked 1,019 Times in 367 Posts	Re: Onan info I am pretty sure I found it. One of the brushes was shot and not hitting the rotor all the way around .There was a spot about an inch long where it appeared to have not been hitting for a while. I took a scribe and pushed the brush up into the holder a little bit and it just stayed there,not returning. Rich, when I checked wires # 1 and 10 and got that 24 ohms, I made the mistake of not rotating the unit 360 degrees to be sure it was hitting everywhere. Amateurs mistake....I rechecked it, and it came and went severely. Onan in Columbus has the brushes and springs in stock, and We will pick them up and get this thing back together tomorrow, Thanks for all the help guys __________________ Jeff Niceswanger 3740 SS

08-11-2012, 06:44 PM	#3
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: Onan info Bad contact between the brushes and slip rings is one of the biggest things that can cause an issue like you have Jeff. If the brush does not contact the slip ring it will arc for a while and the arcing damages the surface of the copper......Clean it with some shop roll paper untill it is as clean as you can get it. I have been working on a Miller 300 D Trailblazer-Diesel welder. Already have hours and hours in it, changed the rotor and PC control board.....and the board was already replaced once 6 months ago.....Weld output is intermittent at best.......I spent a good part of today trying to nail down the problem and find nothing that is clearly wrong.....but it doesn't work and I already have a pile of money in parts in it and a pile of time..... Working with machines that produce electricity can be very very difficult....even for people that do it all the time like myself.... Hopefully you found your problem..... __________________ Rich Biebel S/C 1479 Stock 147R

08-11-2012, 09:36 PM	#4
Jeff Niceswanger Senior Member Join Date: Jul 2003 Posts: 890 Likes: 679 Liked 1,019 Times in 367 Posts	Re: Onan info Well Well Well Spoke too soon, I thought I had it fixed, but now it sets a different code, and still won't run without holding in start button. I now have hertz( 61 while holding button down)). I even have 14-20hz while the motor is being cranked, but I get a code 32. Low hertz while being cranked or something like that.Went ahead and PM'ed it while it was out. Plug, fuel filter, oil etc...I stuck it back in the back of the mini van and I going to take it to the dealer Monday. I checked everything I can think of, Stator/field ohms out (@35) perfect, brushes/rotor are 21 ohms. I have cleaned and tightened grounds and checked pins till I have had enough of it. I even stuck the old controller board back into be sure .. Same 32 code... I'll let you know what they find out..... __________________ Jeff Niceswanger 3740 SS Last edited by Jeff Niceswanger; 08-11-2012 at 09:55 PM.

08-12-2012, 02:28 PM	#5
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: Onan info Working with machines that produce electricity can be very very difficult....even for people that do it all the time like myself.... I already said that but have to repeat it..... Trust me when I tell you I have been there and done that as the saying goes.... I worked on a buddies 4KY earlier this year at home for the better part of a week at night after work.....I was just about to throw in the towel and than gave it another try.....Got it fixed and he is still using it now....probably today as there is a big race at Atco...... That code is a bit odd....Stators can test ok with an ohmeter and still cause problems.....Ohm testiing is not conclusive and I deal with this all the time.. Hopefully you found a place that can get it fixed for you... __________________ Rich Biebel S/C 1479 Stock 147R

08-18-2012, 02:56 PM	#6
supergas4 Member Join Date: Jun 2010 Posts: 159 Likes: 0 Liked 6 Times in 5 Posts	Re: Onan info how about a code 47 on a 5500- marqie

09-05-2012, 10:02 PM	#9
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: Onan info Jeff thats a real good price for a new one.... I think we discussed it possibly being the stator..... I have replaced them and it's always a repair that has to be weighed out..... How old is the machine.....how many hours on it.....what kind of shape is it it....how well was it taken care of...... I think you will be good for quite a while..... I have one to work on tomorrow.....Fuel pump or fuel line issue.... __________________ Rich Biebel S/C 1479 Stock 147R

09-13-2012, 10:20 PM	#10
rognelson777 Member Join Date: Dec 2010 Posts: 376 Likes: 20 Liked 135 Times in 74 Posts	Re: Onan info Rich, not to change the subject but considering autostart for generator when coach batteries get low. HAve you seen these and any problems. I know you only see the problems but any input would be helpful. We do some dry camping, do not like to keep generator running if I do not have too.