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Spec sounds like the transfer switch to me, call fleetwood and ask what the default position of the transfer switch is in your unit, they will tell you, great people.
Sounds like your default position is generator, kinda werid but stranger things happen
Course if you have the generator running to provide air when you plug in, that would explain it
Jim
Spec24--I was just wondering if anyone had mentioned that you should be turning off things like the A/C units before you switch power supply? You don't want to switch between genny and shore power with a load. Not sure this has anything to do with anything, but some people aren't aware of that.
I'm not talking about the fan or any other humming noise, I mean the noise when you first plug it in or unplug it and it makes a loud knock or a quiet bang. We had a fifth wheel with 30amp service quite a while ago but I can't remember what kind of noise that made. If I remember correctly this is normal, but is it possible to be "too loud"? Otherwise the converter seems to be running just fine.
You might have an automatic transfer switch to go from generator power to shore power.... That would explain the immediate "clonk" you hear when plugging in...
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2023 Thor Challenger 37fh on a F53 V8
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