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07-26-2014, 04:49 PM
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#1
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Senior Member
Join Date: Sep 2013
Posts: 163
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Generator problem
Anyone have ideas on why my gennie stop running after about 30 minutes? I am in Texas in about 100 degree heat so maybe it's just over heating. I've tried it sitting still and going down the highway. All the ventilation holes in the compartment seem to be open. I even tried removing the front cover. Still the same results. Any ideas???
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07-26-2014, 05:26 PM
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#2
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Senior Member
Monaco Owners Club Freightliner Owners Club Holiday Rambler Owners Club
Join Date: Jul 2009
Location: Spring Hill, Florida
Posts: 1,380
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Suggest you give a little more info such as fuel type and model number.
For example, if the motorhome was in storage for a long time the diesel could have jelled. Some Power Service from Wally World would help.
Could be air in the lines. On my Onan I can prime the system to displace the air.
Coolant level?
Oil Level?
Last time you changed fuel filter.
Last time you changed the air filter
Cleaned out the spark gap lately.
If your gas, or propane, ....different story
__________________
98 Endeavor DP, ISB275
RX300, Falcon II hitch, BB Vantage Select
VMSpc, 2002 Grey Ford Powerstroke
TST 507 w/ 10 Sensors
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07-26-2014, 05:32 PM
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#3
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Senior Member
Monaco Owners Club KZ RV Club
Join Date: Apr 2014
Location: Overland Park, Ks
Posts: 151
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How much fuel?
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07-26-2014, 06:23 PM
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#4
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Senior Member
Join Date: Dec 2013
Location: Plantation, Fl
Posts: 1,886
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On some generators they tell you not to run it with the cover off.
__________________
2024 Jayco Redhawk 26 M (OCCC challenged)
2017 RWD F 150 with a drive shaft disconnect
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07-26-2014, 07:57 PM
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#5
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Senior Member
Join Date: Sep 2013
Posts: 163
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Gas model. Full tank of fuel in MH. Worked ok the first time I used it back in the winter and have run it about every two weeks when in storage but never in this hot an environment
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07-27-2014, 09:43 AM
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#6
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Senior Member
Join Date: Feb 2010
Posts: 4,654
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Try it unloaded...
Fire it up but leave everything off.
If good then start turning things on.
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Tony & Lori
1989 Country Coach Savannah SE
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07-27-2014, 03:59 PM
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#7
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Senior Member
Fleetwood Owners Club
Join Date: Jun 2012
Location: Austin, TX
Posts: 879
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You dont say what rig you have, if its gas or diesel, its not in your signature?
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07-27-2014, 04:06 PM
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#8
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Senior Member
Join Date: Jul 2012
Posts: 1,450
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I recently encountered the same issues with 7000 watt gas onan. My oil level was down 1/3 way on the dipstick hash marks. I read on the forum that these units can be sensitive to oil level especially when it is hot. I topped off the oil and it runs fine now. Filling these units with oil can be a test of my patience, as it goes in very slow.
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George R. - Fulltiming since January '03
2007 Newmar Mountain Aire 3991
2012 Chevy Malibu LT1
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07-27-2014, 05:21 PM
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#9
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Senior Member
Join Date: Dec 2013
Location: Plantation, Fl
Posts: 1,886
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One of the generators I've had over the years had an oil related problem. If the motor home was parked off level , or driving down the road (with all that inherent movement ) the generator would shut off.
It turned out to be a faulty low oil sender, which would shut down the generator.
__________________
2024 Jayco Redhawk 26 M (OCCC challenged)
2017 RWD F 150 with a drive shaft disconnect
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07-27-2014, 05:46 PM
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#10
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Member
Winnebago Owners Club
Join Date: Dec 2012
Location: Midland,Texas
Posts: 92
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I'm in Midland, and had the same problem . Had to replace the fuel filter and fuel pump, to make a long story short . Working fine now. Filter is only a few dollars and the pump was 122.00.
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07-27-2014, 06:42 PM
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#11
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Senior Member
Join Date: Aug 2008
Location: Georgia
Posts: 8,638
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Quote:
Originally Posted by gthunts
Gas model. Full tank of fuel in MH. Worked ok the first time I used it back in the winter and have run it about every two weeks when in storage but never in this hot an environment
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Does your unit throw a code if so you get go to Onan web site to get the meaning.
__________________
2007 Fleetwood Revolution LE 40V
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07-27-2014, 07:24 PM
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#12
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Senior Member
Join Date: Sep 2013
Posts: 163
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Thanks for the info. I will be home in N FL tomorrow and will check out all your suggestions
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07-29-2014, 11:05 AM
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#13
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Member
Forest River Owners Club
Join Date: Sep 2012
Location: BELEN, NM
Posts: 45
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Had same problem on a 4000 w.. Changed fuel pump. filter, fuel line to carb and spark plug, did it myself for under $100.00
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08-01-2014, 11:16 PM
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#14
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Senior Member
Thor Owners Club
Join Date: Sep 2011
Location: San Diego
Posts: 259
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Is the oil the correct weight for the ambient temperature? How about adding some oil additive as well to help keep generator cool in hotter temps?
__________________
2000 Four Winds 5000 Model 28A
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