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Old 08-05-2013, 08:31 PM   #1
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battery problems

  • does the coach battery have to be hooked up for the chassis battery to start the engine on a 1998 southwind?
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Old 08-05-2013, 08:54 PM   #2
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Not unless the chassis battery is dead. It may have an IRD that automatically connects the batteries if the chassis battery is low.
Need more information. Symptoms, or something to go on.
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Old 08-09-2013, 01:53 PM   #3
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Chassis battery

When I disconnect house batteries I cannot start engine. Also if house batteries are not hooked up my running lights will not come on. I bought this motorhome 1998 southwind storm a few years back. Also the chassis battery is not charging with engine running. The vehicle is not hooked to shore power or running the generator
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Old 08-09-2013, 02:37 PM   #4
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Sounds like your chassis battery is either dead, bad or disconnected. Can you check the voltage at the chassis battery ?
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Old 08-09-2013, 04:15 PM   #5
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Hi profiles,
The answer to your original question is no.

Based on your posts, consider starting from the beginning.
1. If the batteries are wet (able to add water) make sure the water is toped off.
2. Get a portable battery charger and charge all the batteries.
3. Have the batteries load tested. A local auto parts store an do this.
4. Replace or keep the batteries according to the charging and load test results.
5. With fully charged and good batteries installed in the coach. Now you can try to start the engine.

Please post here with the results.
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Old 08-11-2013, 07:12 PM   #6
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battery problems

the batteries are brand new and fully charged.
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Old 08-11-2013, 07:45 PM   #7
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You must have a disconnect relay for the chassis battery that is open or the battery is not hooked to ground. Follow the + battery cable.
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Old 08-11-2013, 08:27 PM   #8
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I can't think of a reason why the coach batteries would need to be connected to start the engine? Actually, I would think the coach batteries should be totally isolated from the engine or it's charging/starting systems unless the emergency start relay is in play, or through the isolator?

If you have a good chassis battery, it sounds like you need to follow the power from it? I would start by making sure/confirming the ground side connections are clean and making solid connections.
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Old 08-11-2013, 09:05 PM   #9
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Depends on the power system.

A close friend's south wind had a bad coach battery that required pushing the boost switch to engage the starting battery.

The controls for the battery system are powered by the coach battery, no coach battery then no battery connect via switches as they are dead.
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Old 08-18-2013, 07:09 PM   #10
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battery

I replaced the ird/e and it did not help. Called intellitec and they said I should put on the diesel bird. It finally works. Thank al of you for your help and suggestions
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