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Old 06-11-2011, 06:44 PM   #1
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Coach Battery Discharges

I have a 2004 Winnebago Siteseer coach. The coach batteries were all charged up and I disconnected the land power source and two days later the coach is down from 13 volts to 10 volts. Switch is in off position.
Any idea what could be drawing the batteries down? This has been an
ongoing problem. New batteries were installed last year and still having the same problem.
Thanks for any help.

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Old 06-12-2011, 03:29 AM   #2
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Sounds like you may have a stuck solinoid on the shut off or the the one that ties the start and coach batteries together. If you shut off the coach batteries, have you checked that indeed no 12v is on in the coach? Look at the propane detector. It should be off when you disconnect the coach batteries. I suggest you disconnect the batteries until you determine the problem as 10v will distroy them. Disconnect the negetive terminal.

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Old 06-12-2011, 03:34 AM   #3
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My best advice would be for you to contact Winnebago Customer relations for technical help. They may have a service bulletin out for your coach. There could be a defective isolator circuit that the chassis side is drawing power when it should not. With that said. Recharge the batteries fully, turn off the disconnect and remove the cables from the chassis battery; both positive and negative for a few days and then check the voltage on the house batteries. Let us know what you find.
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Old 06-12-2011, 04:28 PM   #4
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Thanks for the info - we will try that and I'll let you know how we make out.
Thanks again.
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