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Generators In this forum we will try to answer any of your questions about the different model generators that can be found on Blue Bird coach's.

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  #1  
Old 02-05-2020
mattafact mattafact is offline
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Default Onan Generator on 87 FC35 Not Working

I went to start the genny today after picking it up from the mechanic and it acted normally. Later I tried to restart it and nothing. The switch doesn't light up anymore either.


I only have 1/4 tank of fuel. Is there a low fuel cutoff?


I leave tomorrow for 5 days of boondocking so this timing could not be any worse.
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Matt M
Central Valley, CA
1987 FC35
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  #2  
Old 02-05-2020
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Steelwheels Steelwheels is offline
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First thing check the breakers on the generator, red switch’s on the front.
Try the start/stop switch on the generator to start. Preheat always helps under 30 seconds.

If that doesn’t help, check the voltage on the battery.

Post if it doesn’t help and we can go down the list.

Are you comfortable working on it yourself ? It’s not a difficult generator to troubleshoot.
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Kiki B
Downers Grove, IL
87fc35
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Old 02-05-2020
mattafact mattafact is offline
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Quote:
Originally Posted by Steelwheels View Post
First thing check the breakers on the generator, red switch’s on the front.
Try the start/stop switch on the generator to start. Preheat always helps under 30 seconds.

If that doesn’t help, check the voltage on the battery.

Post if it doesn’t help and we can go down the list.

Are you comfortable working on it yourself ? It’s not a difficult generator to troubleshoot.
The breakers on the front are missing.

As far as preheat none of switches do anything. It worked fine before.

I can do basic stuff but my strength is not in diagnosis unfortunately.
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Central Valley, CA
1987 FC35
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Old 02-05-2020
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If your breakers are missing they may have been swapped for inline fuses, which may be accessible from inside your box you may have to open it.
You could probably give Bruce a call he can tell you exactly where they are.

Sorry for the sideways pic, but your saying your box doesn’t look like this?
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Kiki B
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Old 02-05-2020
mattafact mattafact is offline
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Quote:
Originally Posted by Steelwheels View Post
If your breakers are missing they may have been swapped for inline fuses, which may be accessible from inside your box you may have to open it.
You could probably give Bruce a call he can tell you exactly where they are.

Sorry for the sideways pic, but your saying your box doesn’t look like this?
The box looks just like that but is missing the bottom 2 breakers. They used to be there but not anymore.

I checked the battery and it had 12.7 volts.
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1987 FC35
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Old 02-05-2020
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Some people have switched out the breakers for inline fuses, like a bladed Type in a car or a glass one. They have to be there inside your control box. There are some small bolts that hold the cover on the side that faces the front of the coach. The cover lifts off.

If the generator doesn’t turn over from the control box I would look for those fuses first.

Some have found those breakers troublesome and swapped them for a inline fuse.
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Old 02-05-2020
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There's also the chance that your breaker switches have just come loose and fallen out over the years. Stick a piece of wood in there to trip them. Also, there's not a 'low fuel cutoff' that I know of- but the fuel pick up doesn't reach much further than a 1/4 or 1/8 tank from the bottom. If it was fuel issue you'd still be able to turn the engine over.
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Old 02-05-2020
mattafact mattafact is offline
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The breakers are still in place but the lever part is missing so I used a small screwdriver to trip them with no avail. I removed the cover to that box and I'm getting 12v to the solenoid terminal marked BAT but still nothing when I hit the start switch.
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1987 FC35
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Old 02-05-2020
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1. Try and manually pull the start stop solenoid open and try and start.

2. Try and run a jumper wire from the battery to the start coil the large black cylinder in the control box.

Follow the troubleshooting flow charts in the manual, they are pretty good.

https://www.wanderlodgeownersgroup.c...e%20Manual.pdf

Look at the connections, I have had wires break right at the spade connectors.
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Old 02-05-2020
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Good Ole Bird Good Ole Bird is offline
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Quote:
Originally Posted by mattafact View Post


I leave tomorrow for 5 days of boondocking so this timing could not be any worse.

Bring some tools, a volt meter, something to lay on, some towels, gloves and work clothes...
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