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Old 01-15-2014, 11:16 PM   #1
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Electrical System - Chassis Battery Not Charging

What was a minor irritation has turned into a full-blown pain in the posterior...
My 2008 Berk 360 QS will no longer run unless the generator is also running. Batteries were new in March 2013. They were load tested today by an Interstate dealer. They're all within specs. The engine alternator is not charging, so unless the generator is running, voltage drops below 12 volts within an hour of driving. Are there any fuses, breakers or other owner-serviceable devices that might cause this problem?
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Old 01-16-2014, 03:41 AM   #2
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Did they charge ever after replacement? I had a the same thing and found that the DA that reconnect the batteries after cleaning failed to reconnect correctly. I was told to keep my fingers off or spit correctly. You might check that. I looked at mine ten times and thought it was right. I wire had fallen behind the compartment and I didn't see it.
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Old 01-16-2014, 08:32 AM   #3
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Previous owner replaced the batteries and put the unit up for sale... so improper hookup is a definite possibility. Problem wasn't apparent until I started full-timing. Like you, I've peered in the battery compartment numerous times. I'll take another look this morning, but when you're not sure what you're looking for...
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Old 01-16-2014, 08:53 AM   #4
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A tech at FR pointed mine out. A wire fell behind the batteries and just couldn't see it. Click image for larger version

Name:	ImageUploadedByForest River Forums1389880372.432845.jpg
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Old 01-16-2014, 10:16 AM   #5
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Quote:
Originally Posted by Phil57 View Post
A tech at FR pointed mine out. A wire fell behind the batteries and just couldn't see it. Attachment 45002
Phil, I think it's his chassis batteries that are the problem, not the house batteries. But you are right, the same problem could possibly exist on those batteries too, although much less likely but worth a check.
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"If you can't fix it with a hammer, you have an electrical problem"
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Old 01-16-2014, 10:51 AM   #6
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If like you said the engine alternator is not charging it needs to be replaced
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Old 01-16-2014, 05:03 PM   #7
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I need to read better. Sorry.
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Old 01-17-2014, 09:38 AM   #8
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I need to read better. Sorry.

That pic of your set up will be helpful for many, especially for those who pull their batteries out for the winter. I have a picture I took with my phone so I remember how they go back in come spring. I checked mine with yours to see if we are the same. What would be good is if Boowho posted a pic of his as I know he had a more optimal arrangement than the factory wiring.

Anyway any luck John on your situation?
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Old 01-17-2014, 09:42 AM   #9
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Don't see Boohoo on here as much lately. Must be enjoying the AZ sun.
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Old 01-20-2014, 12:21 AM   #10
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January 19, 2014 update: Made it to San Antonio by running the generator the whole trip from Arkansas. Checked for loose wires, corroded connections, unhooked wires, blown fuses - no luck. Alternator is not charging the chassis batteries. Next step is getting a meter on the alternator itself OR getting the coach to a Freightliner shop where they can plug in and diagnose. I'd like to get a voltmeter on the alternator before I concede defeat. It looks like the only way to get to it is through the bedroom floor...has anyone with a 2008 Berk 360QS done any alternator troubleshooting/replacement? The flooring looks as if the bed frame has to be uprooted to get to the access panels. I hope I'm wrong...
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