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Old 09-13-2014, 10:21 AM   #1
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Inverter Fan Spinning on and off all night

Anyone know why my fan on my inverter and fuse panel sound like a gas weed whacker spinning up and down all night long and I have nothing running to cause it to do that, I am hooked up to the campgrounds 30 amp and my AC is working fine?


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Old 09-13-2014, 11:28 PM   #2
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Inverter or converter?? I know the converter fan will spin up when the unit gets hot from using DC voltage(most converters also charge house batteries)I would take a temp reading or feel how Hot it is... If its cool then I would lean toward a bad thermal switch in the unit ...good luck
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Old 09-14-2014, 01:45 PM   #3
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Quote:
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Anyone know why my fan on my inverter and fuse panel sound like a gas weed whacker spinning up and down all night long and I have nothing running to cause it to do that, I am hooked up to the campgrounds 30 amp and my AC is working fine?


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Mine does a high pitched whine/buzz off and on. It usually stops but I never know how long it will run. It is obnoxious. If I could figure out the fix, I'd do it.

In my googling about, it can be the fan, but it can also be the converter "singing". If you google "rv converter singing" you will see some results. Some people talk about tightening up wiring and other things to make it go away. Others talk about the manufacturer sending out a new unit to have it sing in a different way.

My dealer said "they all do it" and thinks that should be ok with me.
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Old 09-14-2014, 06:59 PM   #4
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The converter fan runs anytime it is producing DC current from the AC provided by the campground. Your refrigerator, furnace, and water heater all have DC control power even though they use AC for the main power. The DC control power allows these appliances to also operate on propane when shore power is not available. I don't know why your converter fan is so loud - that's a question for a dealer (and not the one that told you they all do it). They all run, they don't all run loud.
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Old 09-14-2014, 08:33 PM   #5
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we get a lot less of this after converting most of the lights to LEDS.
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Old 09-14-2014, 08:54 PM   #6
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Mine spins up if I turn on lights....(use dc power)..then stops when I turn them off...I would turn the main breaker off and use a toothpick to turn the fan by hand to see if it turn normally.
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Old 09-16-2014, 08:27 PM   #7
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Found out why there is a burning smell near my battery and what it was? The emergency break pull away is all melted and shorting out

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Old 09-16-2014, 09:01 PM   #8
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I have a Shasta 2912 mfg in May or 2011 but does anyone know where you can buy these brake safety switches? Do I have to get one from my dealer?


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Old 09-16-2014, 09:50 PM   #9
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Good find....that's what happens when they use the house battery for the brakes instead of a single little battery on a seperate system. We call them breakaway switchs. It's pretty common if you u can find any body who sells trailers. Every one with electric brakes has to have one.DOT law.
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Old 09-16-2014, 09:54 PM   #10
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Good find....that's what happens when they use the house battery for the brakes instead of a single little battery on a seperate system. We call them breakaway switchs. It's pretty common if you u can find any body who sells trailers. Every one with electric brakes has to have one.DOT law.



The smell of burning plastic was horrible however pulled the battery and checked all wires around and main feeds they are all good, once I get the new switch I should be good for my big trip in two weeks


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