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Onan Generators

Onan Generator 7.5HDKAJ11502G


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  #1  
Old 01-07-2018, 01:15:07 AM
dcboyzs dcboyzs is offline
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Default Onan Generator 7.5HDKAJ11502G

I have the above generator and it has been running great, until a few days ago and it just shut off. I found how to get the fault codes and I got 3-32 fault code. 3 is the primary code and 32 is the secondary.
The generator will start and run for anywhere from 5 minutes to 2 hours.

Any Ideas ??
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Old 01-07-2018, 10:20:18 AM
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Billy J Shafer Billy J Shafer is offline
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Default Re: Onan Generator 7.5HDKAJ11502G

I always hated problems like that. Give us time to check things out.
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Last edited by Billy J Shafer; 01-07-2018 at 10:51:36 AM.
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Old 01-07-2018, 10:45:01 AM
Kevin K Kevin K is online now
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Default Re: Onan Generator 7.5HDKAJ11502G

I don't have experience with this model, but are you sure you are reading the codes correctly? The secondary code 32 indicates low cranking speed: cranking speed less than 180RPM for more than 2 seconds.

Download the 981-0522 service manual from the Twinslan site and check page 18-1 for instructions on correctly reading the codes.

http://www.twinslan.net/~n0nas/manuals/onan/

You might as well download the other manuals for your generator as well:

981-0161 operator
981-0200 parts
981-0514 engine
981-0623 install

Someone who has service experience with this genset should be along to help you soon.
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Old 01-07-2018, 01:29:10 PM
dcboyzs dcboyzs is offline
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Default Re: Onan Generator 7.5HDKAJ11502G

i CHECKED THE CODE 2 TIMES TO MAKE SURE i WAS READING IT RIGHT.
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Old 01-07-2018, 02:49:21 PM
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Default Re: Onan Generator 7.5HDKAJ11502G

Quote:
Originally Posted by dcboyzs View Post
i CHECKED THE CODE 2 TIMES TO MAKE SURE i WAS READING IT RIGHT.
No need to shout. We all are here to help, not to harass.
These newer sets with all the electronics just made things harder to fix in my opinion.
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Old 01-07-2018, 04:22:01 PM
dcboyzs dcboyzs is offline
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Default Re: Onan Generator 7.5HDKAJ11502G

I did not realize my caps were on. Sorry .... did not mean to shout.
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Old 01-27-2018, 10:57:06 PM
dcboyzs dcboyzs is offline
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Default Re: Onan Generator 7.5HDKAJ11502G

I spoke with a tech for my generator and he told me that if the oil is broken down and the generator is not getting its proper protection from it that the generator will shut down and give the 3 3-2 code. I did an oil and filter change today and the generator has been running for over 10 hours without shutting down.
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Old 01-27-2018, 11:01:39 PM
Viking66 Viking66 is offline
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Default Re: Onan Generator 7.5HDKAJ11502G

Good to hear it was that simple!!

I can see you did not mean to shout because where you wanted to capitalize the I they were not, and the rest was...accidental Cap Lock on
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Old 01-28-2018, 09:02:52 AM
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Default Re: Onan Generator 7.5HDKAJ11502G

wow thatís pretty impressive that it will shutdown.
i wonder how it can tell the oil is bad.
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