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Old 10-07-2015, 08:47 PM   #1
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Sunseeker not charging batteries

Need some help. Sunseeker 2900' 2012.
I had the CO2 alarm for low voltage. Had both batteries replaced, but they are not being charged. Check the converter and it is outputting 13.6 volts, but this doesn't seem to be getting to the batteries.

Checked the breakers in the control box, all ok. Could it be cables or the control electronics? Any thoughts would be appreciated before I go to the dealer!
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Old 10-07-2015, 08:48 PM   #2
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Quote:
Originally Posted by Flying Frank View Post
Need some help. Sunseeker 2900' 2012.
I had the CO2 alarm for low voltage. Had both batteries replaced, but they are not being charged. Check the converter and it is outputting 13.6 volts, but this doesn't seem to be getting to the batteries.

Checked the breakers in the control box, all ok. Could it be cables or the control electronics? Any thoughts would be appreciated before I go to the dealer!
You need to find a manual resetable circuit breaker near your positive cable.

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Old 10-07-2015, 09:18 PM   #3
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I agree with Turns that it's probably the Short-stop circuit. However, it may not be a manual reset unit. It could be an automatic unit that has failed.
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Old 10-07-2015, 10:04 PM   #4
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Originally Posted by Bama Rambler View Post
I agree with Turns that it's probably the Short-stop circuit. However, it may not be a manual reset unit. It could be an automatic unit that has failed.
True.

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Old 10-07-2015, 10:24 PM   #5
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Like most motor homes, the Sunseeker has a Battery Control Center (BCC).

Inside the BCC there are resetable current limiters that prevent short circuits or momentary overloads on one battery (Coach or Starting) from affecting the other battery.

Here is a "typical" BCC wiring diagram and even though it is not for your motor home, they are fairly generic.

The Battery Isolation Relay may be inside the BCC or a separate unit.

Corrosion at any of these connections can cause failure of the coach or starting battery (or both) not to charge.
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File Type: pdf 30DS drawings.pdf (1.45 MB, 26 views)
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Old 10-08-2015, 02:48 AM   #6
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I have a 2012 2900 also and it happens to be in my driveway, if you would like me to check voltages or trace cxts pm me and I'll give you my number.
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