Having run generator (Onan Microquiet 3600) one morning a week ago. I returned home that night (wife watching tv) and noticed batteries very low. Naturally gen wouldn't start.
Recharged batteries by driving with same result.
Since then four new 130AMP AVG replacements installed.
Primer light comes on but nothing when I hit start. This happens both at the remote and at the generator.
I get 3 priming light flashes followed by 2. This is an Onan code 3,2. The code says check batteries and or connections. These flashes came up after the new batteries were installed. Everything else is working fine.
Also I have done the following:
Oil and fuel levels checked
Remote Control panel connections checked and ok.
Batteries fully charged with good connections
Negative and positive connections at generator good as well.
Any suggestions?
Cheers
Grant
oldbobsbus said
04:37 PM Mar 28, 2014
I'm just gunna ask an absolutely stupid question first..
Are your battery cables hooked up correctly..Poss (Red) to +..Neg (Black) to - ...
Grandrey said
04:44 PM Mar 28, 2014
Yes, installed by professionals.
dING said
05:36 PM Mar 28, 2014
Hmmmmmmmm that means tis possible to be incorrectly installed
intouch said
08:18 PM Mar 28, 2014
And that has happened before, One of our members of our chapter had enormous amount of trouble, took it to another auto elec. only to discover, incorrect set up.
valiant81 said
08:29 PM Mar 28, 2014
Hi all;
Ok try the starter motor and the starter solinord , may be jamed with gunk, when you try and start the motor can you hear any noise from the started, and it could also be the starter relay. Sometimes a gental !! tap with the back end of a hammer may get things working.
PJK said
09:05 PM Mar 28, 2014
Is there also a pull cord option??
Check that the motor turns over by hand, to eliminate the possibility it is seized up.
PJK
Grandrey said
04:26 PM Mar 31, 2014
Hi all, thanks for the replies.
Solenoid seems to be okay, measured resistance at 5.4Ohms. But I'm no sparky. Starter is too awkward to get access to.
There is no pull cord option.
I know I could go to another auto electrician but all other appliances are working fine.
Any other suggestions?
Thanks
Grant
Baz421 said
04:45 PM Mar 31, 2014
Grandrey wrote:
Hi all, thanks for the replies.
Solenoid seems to be okay, measured resistance at 5.4Ohms. But I'm no sparky. Starter is too awkward to get access to.
There is no pull cord option.
I know I could go to another auto electrician but all other appliances are working fine.
Any other suggestions?
Thanks
Grant
Grant read this link this guy had the same problem and it talks about shut off valves etc.
Is voltage getting to the starter solenoid? If so, can you hear it click?
If you think that the solenoid may be stuck, can you unbolt it and then try to activate it?
If voltage isn't getting to the solenoid, can you trace the starter cable back to the controller and monitor the voltage at that point?
As far as the microcontroller is aware, the generator has been commanded to start, but the controller has not sensed a sufficient cranking RPM within the allotted time. Therefore I suspect that there may be a faulty switching MOSFET on the PCB.
The starter solenoid checks out so now it would appear the starter motor is the problem.
Grant
dorian said
09:58 AM Apr 3, 2014
Here are some manuals that I found while researching this thread. They may be useful to others.
Page 22 of the handbook lists the part numbers of the various manuals corresponding to each model and series. I would recommend downloading the manuals now rather than later. I say this because I wasn't able to find them on the Cummins web site in the usual way. Instead I used the URL provided by Baz421 and edited the part number within the URL. I suspect that Cummins/Onan may not be aware that these documents are actually accessible from their web site, so I wouldn't be surprised if they were to disappear.
"Your message has been flagged as potential spam and needs to be approved by an administrator before it will appear on the forum."
Why ???
oldbobsbus said
03:58 PM Apr 4, 2014
dorian wrote:
"Your message has been flagged as potential spam and needs to be approved by an administrator before it will appear on the forum."
Why ???
Too many links the auto checker sent your post to Admin..
dorian said
04:41 PM Apr 4, 2014
The post with the most lnks went through without challenge, but the second and third posts did not. That doesn't make sense to me.
nano said
03:36 PM Apr 7, 2014
An onan code 3 followed by a 2 is fault code 32, cranking rpm below 180 for 2 seconds, caused by the failure of the starter to turn. Have you tried shorting the two large terminals on the solenoid, this will supply battery voltage straight to the starter. If it still does not turn over, check connections at the starter, very fiddly. The starters on these are quite flimsy, should you need a replacement, there are plenty of spares suppliers, in Sydney, Generator Power are probably the best. Try the shorting of the solenoid and let us know how it goes, should not be hard to find problem (worked on onans for over 9 years).
KFT said
04:26 PM Apr 7, 2014
Dorian, maybe the first post with links marked you and then the second one was trapped.
Having run generator (Onan Microquiet 3600) one morning a week ago. I returned home that night (wife watching tv) and noticed batteries very low. Naturally gen wouldn't start.
Recharged batteries by driving with same result.
Since then four new 130AMP AVG replacements installed.
Primer light comes on but nothing when I hit start. This happens both at the remote and at the generator.
I get 3 priming light flashes followed by 2. This is an Onan code 3,2. The code says check batteries and or connections. These flashes came up after the new batteries were installed. Everything else is working fine.
Also I have done the following:
Oil and fuel levels checked
Remote Control panel connections checked and ok.
Batteries fully charged with good connections
Negative and positive connections at generator good as well.
Any suggestions?
Cheers
Grant
I'm just gunna ask an absolutely stupid question first..
Are your battery cables hooked up correctly..Poss (Red) to +..Neg (Black) to - ...
Hi all;
Ok try the starter motor and the starter solinord , may be jamed with gunk, when you try and start the motor can you hear any noise from the started, and it could also be the starter relay. Sometimes a gental !! tap with the back end of a hammer may get things working.
Check that the motor turns over by hand, to eliminate the possibility it is seized up.
PJK
Solenoid seems to be okay, measured resistance at 5.4Ohms. But I'm no sparky. Starter is too awkward to get access to.
There is no pull cord option.
I know I could go to another auto electrician but all other appliances are working fine.
Any other suggestions?
Thanks
Grant
Grant read this link this guy had the same problem and it talks about shut off valves etc.
http://www.justanswer.com/rv-motorhome/4k5gp-onan-microquiet-3600lp-genset-winnebago-view.html
and here's the owners manual if you don't have one
http://www.cumminsonan.com/www/pdf/manuals/981-0159D.pdf
Also a code 32 in the owners manual can be slow cranking speed due to oil viscosity.
AND THIS ONE IS TOPS bugs blocking the vent on LP regulator.
http://www.usefulbulk.com/navionmods/onanhose/index.html
Good luck
yakimagenerator.com/generators/pdf/0981-0246.pdf
Is voltage getting to the starter solenoid? If so, can you hear it click?
If you think that the solenoid may be stuck, can you unbolt it and then try to activate it?
If voltage isn't getting to the solenoid, can you trace the starter cable back to the controller and monitor the voltage at that point?
As far as the microcontroller is aware, the generator has been commanded to start, but the controller has not sensed a sufficient cranking RPM within the allotted time. Therefore I suspect that there may be a faulty switching MOSFET on the PCB.
www.cumminsonan.com/www/pdf/manuals/981-0503.pdf
The starter solenoid checks out so now it would appear the starter motor is the problem.
Grant
Page 22 of the handbook lists the part numbers of the various manuals corresponding to each model and series. I would recommend downloading the manuals now rather than later. I say this because I wasn't able to find them on the Cummins web site in the usual way. Instead I used the URL provided by Baz421 and edited the part number within the URL. I suspect that Cummins/Onan may not be aware that these documents are actually accessible from their web site, so I wouldn't be surprised if they were to disappear.
RV Generator Handbook:
www.cumminsonan.com/www/html/Common/pdf/rv/F-1123.pdf
Parts Lists and Exploded Views:
yakimagenerator.com/generators/pdf/0981-0246.pdf
yakimagenerator.com/generators/pdf/0981-0238.pdf
yakimagenerator.com/generators/pdf/0981-0271.pdf
yakimagenerator.com/generators/pdf/0981-0200.pdf
yakimagenerator.com/generators/pdf/0981-0259.pdf
yakimagenerator.com/generators/pdf/0981-0277.pdf
yakimagenerator.com/generators/pdf/0981-0286.pdf
yakimagenerator.com/generators/pdf/0981-0283.pdf
yakimagenerator.com/generators/pdf/0983-0201.pdf
RV Generator Service Manuals:
www.cumminsonan.com/www/pdf/manuals/981-0503.pdf
www.cumminsonan.com/www/pdf/manuals/981-0540.pdf
www.cumminsonan.com/www/pdf/manuals/981-0535.pdf
www.cumminsonan.com/www/pdf/manuals/981-0506.pdf
www.cumminsonan.com/www/pdf/manuals/981-0501.pdf
www.cumminsonan.com/www/pdf/manuals/981-0502.pdf
www.cumminsonan.com/www/pdf/manuals/981-0522B.pdf
www.cumminsonan.com/www/pdf/manuals/981-0526D.pdf
www.cumminsonan.com/www/pdf/manuals/981-0518E.pdf
www.cumminsonan.com/www/pdf/manuals/981-0530C.pdf
www.cumminsonan.com/www/pdf/manuals/983-0501D.pdf
www.cumminsonan.com/www/pdf/manuals/981-0522B.pdf
www.cumminsonan.com/www/pdf/manuals/981-0526D.pdf
www.cumminsonan.com/www/pdf/manuals/981-0518E.pdf
www.cumminsonan.com/www/pdf/manuals/981-0530C.pdf
www.cumminsonan.com/www/pdf/manuals/983-0501D.pdf
www.cumminsonan.com/www/html/Common/pdf/manuals/981-0246.pdf
Here are two more service manuals using this second format:
www.cumminsonan.com/www/html/Common/pdf/manuals/981-0545.pdf
www.cumminsonan.com/www/html/Common/pdf/manuals/981-0546.pdf
Why ???
Too many links the auto checker sent your post to Admin..
just a thought
frank