salemExplorerMar 23, 2017ConverterMy trailer has sit since the first week of January. Today I plugged it in to get ready for a trip next Monday. I noticed the converter is humming. Is this normal? I've noticed it before when campi...Show More
horton333ExplorerMar 23, 2017It's common to hear the fan on and sometimes a bit of noise from the switching coils. Was your battery charged when you put it in?
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