D Bach

Lake Jackson, TX

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I have a 2005 year model gasoline Onan 5500 Gold genset. The engine dies and the control panel reports Error Code 14. What is causing this and what is the fix?
I am still under warranty.
David Bachelder
Lake Jackson, TX
2006 2500HD Chevy D/A LLY Short Box
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"I love the smell of diesel in the mornings"
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Puddles

Lafayette, Indiana

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Check your manual to find out what code 14 is... It should have a index for fault codes. Don't forget to clear the code, the code will continue to come up and stop the generator if not cleared.
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Jerry_Keller

Southern California

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The Onan web site will have the manuals, codes, etc., available for their systems.
Jerry Keller
2006 Bounder 35E, W22
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Jerry_Keller

Southern California

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Overfrequency Fault -- Code #14
(Engine governor unable to maintain rated frequency)
Corrective Action: See an authorized Onan dealer.
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smithrock

Long Beach, CA.

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Jerry_Keller wrote: Overfrequency Fault -- Code #14
(Engine governor unable to maintain rated frequency)
Corrective Action: See an authorized Onan dealer.
Of course !
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D Bach

Lake Jackson, TX

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Puddles wrote: Check your manual to find out what code 14 is... It should have a index for fault codes. Don't forget to clear the code, the code will continue to come up and stop the generator if not cleared.
I have read the manual, I can not see how you clear an error code?
How is it done?
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krt

CA

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On another forum someone posted to disconnect the battery to the gen.
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BCNUL8R

Topeka, Kansas

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On another forum someone posted:
Code 14, over frequency fault. Normally caused by engine speed increase after gen set is unloaded (ie microwave stopping or Air cond cycling off). This is most likely caused by an air leak or vaccum leak on the intake side of the engine. Things to check include the two nuts holding the carb air cleaner on, the bolts in the intake manifold, & the small vaccum hose leading to the choke pull off diaphram as well as the diaphram itself. Also make sure the crankcase breather is clean & working properly.
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gunny357

North Carolina

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BCNUL8R wrote: On another forum someone posted:
Code 14, over frequency fault. Normally caused by engine speed increase after gen set is unloaded (ie microwave stopping or Air cond cycling off). This is most likely caused by an air leak or vaccum leak on the intake side of the engine. Things to check include the two nuts holding the carb air cleaner on, the bolts in the intake manifold, & the small vaccum hose leading to the choke pull off diaphram as well as the diaphram itself. Also make sure the crankcase breather is clean & working properly.
Thank You good advice.
Original poster did not include full model/spec/serial number. If engine is carbureted, might have a misadjusted idle screw or governor.
The information of a 5500 Onan 2005 model year just isn't enough to wager a good guess on.
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D Bach

Lake Jackson, TX

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I wish I could get to that information. The trailer is at the dealer (180 miles away) getting a leak fixed, for the fourth time.
Here is something that I noticed. The camper has a 26 gallon gas tank built in for the gen set located at the rear of the trailer, the gen set is at the front (36 foot trailer). After the genset has been running for a few hours the fuel level begins to drop. If you loosen the filler cap (gas cap) on the tank you can hear air rushing in.
So as the gas tanks level drops the fuel tank develops a vacuum. I'm supposing this means the fuel pump not only has to work to supply fuel but it now has to fight the vacuum building in the tank. Is the problem in the fuel tank filler cap? Aren't they supposed to be vented?
If I disconnect the battery to clear the error code then replace the gas tank cap with a vented cap, do you think the problem will go away?
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