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Old 07-17-2016, 08:15 PM   #1
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Fluctuating lights on shore power.

2014 Wildwood 29kfbs. Lights fluctuate on shore power. I have Installed a Battery Disconnect switch. Turned off battery switch and lights quit fluctuating. I thought I would try that out with battery disconnected. AC and lights went out, then lights came back on. So I turned the battery switch on and checked AC, worked fine, but lights fluctuate. What the heck is going on???? When on shore power, how does the battery work with the converter?
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Old 07-18-2016, 01:21 PM   #2
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Ours did that in an older unit, and come to find out it was a bad cooling fan in the converter. Every time the converter would become loaded either from turning on lights or from charging the battery it would limit on temperature and cause the lights to fluctuate.

Do you hear the fan in the converter running from time to time?
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Old 07-18-2016, 08:26 PM   #3
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Quote:
Originally Posted by Bama Rambler View Post
Ours did that in an older unit, and come to find out it was a bad cooling fan in the converter. Every time the converter would become loaded either from turning on lights or from charging the battery it would limit on temperature and cause the lights to fluctuate.

Do you hear the fan in the converter running from time to time?
Have not noticed any fan noise, but it's summer and with the AC on, it's hard to hear.
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Old 07-23-2016, 12:10 AM   #4
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Wild guess. Perhaps you have a wfco converter that can't decide to be at float voltage or absorption charge voltage. Or a wfco that is just dying?

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Old 07-23-2016, 07:27 AM   #5
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Sounds like the converter is changing voltage to charge the battery. How old is your battery? Is it able to hold a charge?
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Old 07-23-2016, 07:33 AM   #6
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Agree with converter causing fluctuation with that said I would also check and tighten all the connections at the converter.
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Old 07-25-2016, 08:22 PM   #7
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Watch those WFCOs. Mine started to smoke this weekend
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