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Old 04-26-2013, 08:46 AM   #1
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Converter noise

I have a 2005 Jayco Baja. When I connect the batteries the converter makes a loud buzzing noise. Anyone have a idea what is wrong?

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Old 04-26-2013, 03:01 PM   #2
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Loose wires will cause the inverter or converter to buzz.

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Old 08-15-2013, 11:53 PM   #3
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My Inlaws have a pop up camper. There's was buzzing pretty bad. Turns out that after time, they tend to wear out and lose the material that keeps the capacitor from vibrating. We ordered a new one for around $95 and replaced it. Works great now and it's real quiet!! Hope that helps.
Larry & Rayna Johnson
We upgraded our motorhome!!!
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Old 08-16-2013, 07:08 AM   #4
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Wires don't make noise and capacitors don't vibrate.

The simple answer is that the fan in the converter is noisy. If so, and if this is a new development, you might be able to replace the fan. On the other hand, it might just be a noisy design.

There is one other possibility. The largest component in the converter is the transformer. The transformer is constructed with primary and secondary coils of wire around a core laminated of many "E" shaped layers in alternating directions. There are usually either 2 or 4 bolts or large machine screws holding the laminations together. The entire assembly is then dipped in varnish. The varnish tends to hold the stack together and also keeps the screws from loosening.

If things do get loose, the electromagnetism causes the laminations to vibrate at 60 Hz. If you can get to the screws, you might be able to tighten them, but the varnish might make it a little bit difficult.

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Old 08-16-2013, 09:25 AM   #5
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Well there was no fan. But the tarnish you are referring to had over time gone away. So the larger capacitor was vibrating. Simple answer...replace it.
Larry & Rayna Johnson
We upgraded our motorhome!!!
94 Coachman Santara 32'
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