haste maker
alabama
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I have a 7000 watt gas Onan that runs great without the A/C turned on, but sometimes NOT every time it will stop running after the A/C has been on for a few hours...any ideas what the problem could be? I have had both coil packs & the fuel pump & spark plugs replaced.
This generator is in a 2007 32BA gas using a Ford chassis..
Retried Teamster
2007 Allergo
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bgum
South Louisiana
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Joined: 02/22/2006
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Does it throw any codes?
OVER HEATING?
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dougrainer
Carrolton, Texas
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Will it start up within a few seconds(less then 5) when you restart? Or, do you have to crank a lot to get it to restart? Doug
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haste maker
alabama
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No codes...
Yes it will restart in a few minutes not seconds & run 14 hours or more with the A/C off
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dougrainer
Carrolton, Texas
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haste maker wrote:No codes...
Yes it will restart in a few minutes not seconds & run 14 hours or more with the A/C off
Odds are you have a defective rubber fuel supply line from the gas tank. It is old and rotted. When under load the Onan uses more gasoline. NOT under load it may have enough gasoline to run. The best way to confirm this is to connect a gallon gasoline can with a short rubber fuel line and retest. IF it runs under load under load, then you need to replace the supply fuel line. If it does NOT stay running check the oil viscosity, and make sure it is correct and the oil is at the correct level. When you do NOT have a fuel supply problem and the Onan dies, it will then restart with in 10 seconds. But taking longer means the onan fuel pump is trying to deliver fuel to an empty carb bowl. Doug
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haste maker
alabama
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Thanks I will check into that when I get home, on a trip right now.
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haste maker
alabama
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dougrainer wrote:haste maker wrote:No codes...
Yes it will restart in a few minutes not seconds & run 14 hours or more with the A/C off
Odds are you have a defective rubber fuel supply line from the gas tank. It is old and rotted. When under load the Onan uses more gasoline. NOT under load it may have enough gasoline to run. The best way to confirm this is to connect a gallon gasoline can with a short rubber fuel line and retest. IF it runs under load under load, then you need to replace the supply fuel line. If it does NOT stay running check the oil viscosity, and make sure it is correct and the oil is at the correct level. When you do NOT have a fuel supply problem and the Onan dies, it will then restart with in 10 seconds. But taking longer means the onan fuel pump is trying to deliver fuel to an empty carb bowl. Doug
Doug I am on a trip now but today I started the generator & turned on the front A/C to keep the cat cool while we where stopped to eat, we were only away from the RV about 30 minutes & when we returned the generator had quit, but did start up & I let it run with just the rear A/C on for the next 4 hours while we were driving to our next stop & had no problems..also it now has a code 47 which was the same code it had when I replaced the coil packs & fuel pump & spark plugs...any ideas?
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dougrainer
Carrolton, Texas
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test with just the front AC for a few hours. Sometimes a defective capacitor or compressor will load down a Genset and kill it rather than kill the breaker. Doug
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haste maker
alabama
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dougrainer wrote:test with just the front AC for a few hours. Sometimes a defective capacitor or compressor will load down a Genset and kill it rather than kill the breaker. Doug
I did that today for about 2 hours without any problems, while driving on the road, I wonder if the insulated front cover on the generator and the metal door in front of the generator is casing to much heat while I am parked.
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haste maker
alabama
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Thanks for all the input on my generator problem, I have return home & have some tools to check thing with, & I found the slip rings in mine are black not copper, I am going to order the Slick Slick from Flight Systems & clean these rings.
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