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Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 14675
Experience:  Certified on Onan and Generac generators
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I have an Onan 3.3ky LPG gen set in my motor home. When I

Customer Question

I have an Onan 3.3ky LPG gen set in my motor home. When I ran it today, with the AC
on, it operated for about 15 mins and then shut down. When I tried to re-start, after turning the AC off, it would run less than a minute at what seemed to be a reduced speed and then shut down. Error code is 15.
Any ideas?
Submitted: 11 months ago.
Category: Small Engine
Expert:  Hank F. replied 11 months ago.

Hello, my name is ***** ***** I am going to assist you with this.

what is the full model number of the genset?

Customer: replied 11 months ago.
Expert:  Hank F. replied 11 months ago.

That is only a partial model number.

I need the whole thing.

Customer: replied 11 months ago.
I'm just heading for bed Hank. I will try and dig out the model number tomorrow. How do I contact you?
Expert:  Hank F. replied 11 months ago.

That will be fine. It is going on 11 here in KY, and I have to get up at 5:30 for work..

All you have to do is reply to one of the email messages you received, or just log in to Justanswer with your username and password, and post a reply to this message.

Customer: replied 11 months ago.
Have a great sleep!
Expert:  Hank F. replied 11 months ago.


Expert:  Hank F. replied 11 months ago.

Did you get the model number yet?

Customer: replied 11 months ago.
SN 36KYFA26120P sent may 24th. I'm puzzled. D
Expert:  Hank F. replied 11 months ago.

It did not come through on the 24th. You can scroll up to see everything that has passed between us.

For a spec 26120P, I am also going to need the serial number.

Code 15 on this unit is Under frequency. You are definitely going to need a frequency meter to troubleshoot this one.

Do you have a frequency meter, or access to one?

Customer: replied 11 months ago.
I don't have a frequency meter but will check tomorrow with a friend who may have one. Will provide the SN later tomorrow. Tks.
Expert:  Hank F. replied 11 months ago.


Customer: replied 11 months ago.
It would appear once again that my last message didn't make it through the maze of your system.
In any event I have chosen to discontinue our conversation and have booked an appointment with a cummins/onan service dealer. Please close your file. Thank you. PS I don't believe I can rate your service because we really didn't get very far.