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Old 06-05-2018, 07:44 PM   #29
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Please inform how/where to find these drawings that are associated with the battery layout that you have posted in this thread. They are a great asset to have in order to locate wires and placement of components.
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Old 06-05-2018, 08:06 PM   #30
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Yes the current wiring did work for 1 month in the configuration of both batteries wired for both house and chassis together , as descibed the top battery terminals wired for house the side terminals wired for chassis.
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Old 06-05-2018, 08:21 PM   #31
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Please inform how/where to find these drawings that are associated with the battery layout that you have posted in this thread. They are a great asset to have in order to locate wires and placement of components.
That's from the wiring installation drawing I linked in one of your other threads.

In this post.

If you have a good connection at the battery, seems like you need to check the connections at the starter. Or check where the ground is hooked to the chassis. Just follow the path the current has to take, as others have said.
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Old 06-05-2018, 08:38 PM   #32
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Best solution might be to find an experienced DIY motorhomer who is retired and bored and owns a multimeter and knows how to use it and has nothing better to do than to help out a fellow motorhomer in trouble.
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Old 06-06-2018, 09:35 AM   #33
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Dead rv - repaired

Morgan the Mechanic troubleshot and found the ignition switch was defective, by jumpering it, after checking all fuses. Replaced switch. All systems operable.

Thank you to all for the outstanding help.

May God bless you all
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Old 06-06-2018, 12:32 PM   #34
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Glad you got the issue solved

Also, thanks for updating this post as the members that are trying to help you appreciate the info.
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Old 06-06-2018, 11:22 PM   #35
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You shouldn't operate different types of batteries connected together. Batteries should be the same type and same age. The weaker battery will drain and ruin the good, or stronger, battery.

As mentioned above there is a good chance that either the engine system battery ground wire needs to be cleaned or the engine battery hot leads from the batteries needs to be cleaned.

Safe travels.

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Old 06-06-2018, 11:41 PM   #36
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What should be any negative outcome of this configuration?

RV operated one month.

Now dead, no chassis power.

Generator starts and runs along with normal operation of related house 12 vdc systems.

House batteries check 12.36 vdc.
Pass load testing and were charged.

Would installing the chassis battery and reconfiguring the battery systems back to seperate chassis and house repair the dead chassis problem?
Thanks for any suggestions or fixes.
Your house batteries are a long distance from the engine starter, so there is too much voltage drop in the cables when the high current required for starting is supplied.
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Old 06-07-2018, 11:10 AM   #37
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Installing another battery won't fix your immediate problem, but a through cleaning of the battery cable ends may.

If the house and start cables are piled up on the house batteries and snugged down with wing nuts, there could be a bad connection.

Take them off, clean them up and tighten them back down with more then your fingers.

Double check that the engine ground cable is connected to the battery. Using a chassis ground will burn up the thin wires grounding the engine to the chassis.

Of course it makes more sense to have seperate systems but not nessessery.

I run my liveaboard, diesel boat, with one battery bank. If the batteries gets to weak to start the engine ( never has ), I have a portable generator to charge them.
Well,
If it wasn't necessary, then why would a few zillion motor homes/campers/etc. that have been built for decades and decades have TWO SEPERATE SYSTEMS? I suggested the OP separate his SINGLE system into the normal two so that if and when, problems develop, (and they WILL DEVELOP) not only will any issues be SERIOUSLY easier to analyze but, the potential for one system to damage the other system, when any part of any system goes bad, will be completely eliminated.

But, if he keeps the two systems combined, and one goes bad, well, he'll be right back in the predicament he's just gotten out of. If just one of the cells in any of the batteries goes south, guess what happens to the entire system? I'd prefer the two systems.
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Old 06-07-2018, 11:38 AM   #38
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Well,
If it wasn't necessary, then why would a few zillion motor homes/campers/etc. that have been built for decades and decades have TWO SEPERATE SYSTEMS? I suggested the OP separate his SINGLE system into the normal two so that if and when, problems develop, (and they WILL DEVELOP) not only will any issues be SERIOUSLY easier to analyze but, the potential for one system to damage the other system, when any part of any system goes bad, will be completely eliminated.

But, if he keeps the two systems combined, and one goes bad, well, he'll be right back in the predicament he's just gotten out of. If just one of the cells in any of the batteries goes south, guess what happens to the entire system? I'd prefer the two systems.
Scott
I said " it wasn't going to fix his IMMEDIATE problem "

But it is not necessary. Many folks do it.
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