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Old 05-12-2015, 10:59 AM   #15
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Hmm. Well, I have turned the air conditioner on. And it does seem like there might be a hiccup with it. I tested the wall outlets by just plugging an iPhone charger and an extension cord. The CFL in the extension cord lantern did blow. So now I'm having concerns that I may have damaged the air-conditioner too. Thankfully it seems like there's enough room for error in the iPhone charger that it didn't blow my phone up.
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Old 05-12-2015, 11:54 AM   #16
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The iPhone charger likely is a multi voltage unit, which automatically adjusts for the input voltage. iPhones are used world wide, so they, and many other small low wattage "wall wart" chargers are built that way today. My razor for example is good from 90 to 250 volts as it's input.

I expect you have 240 volts at your new trailer outlet, and you fried a number of things.
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Old 05-12-2015, 01:14 PM   #17
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10 four. Since the fridge and furnace are low-voltage with their electrical stuff, is there any hope that I have not fried those? That the converter is the thing that took the hit and prevented it from going through to those appliances?
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Old 05-12-2015, 04:17 PM   #18
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The refrigerator control system is 12 volts, so you have not damaged that part of it, but if it was on automatic 120 volt detection you could have had it turn on the heater element and could have toasted that part only. But if you didn't have the refrigerator on at all, probably you are OK on that. The heater is about $40 to $50 if it needs one.

Same with the water heater. I hope you did not turn it on electric, if so you may have damaged the heater element in it. Replacement heater for it is probably about $20 if needed.

The furnace and water pump should be fine.

If you tried the AC unit, it may have toasted. Same with the microwave.
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Old 05-12-2015, 09:13 PM   #19
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Don't forget that the 120VAC operational side of the fridge runs thru the control board and a 120VAC surge could easily take out that part of the refer's board. The water heater electric element is 12VDC relay controlled, so if it was not on electric, chances are that you missed that bullet.
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Old 05-12-2015, 10:55 PM   #20
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Thankfully I didn't have the water heater on (that I know of! We don't have water to the trailer yet, as it's not in its spot up on the hill near where we're going to build a house. The well is going in this week). Good points about the refrigerator. I was a little ambitious with my testing things, so I likely could've damaged the refrigerator since I fiddle back-and-forth between Auto and gas on the controls. Anyway, I'm a try to wire that thing properly once I get there tonight or first thing in the morning… New converter doesn't arrive till Thursday, so I'll have to hold my breath for a bit.

So, in the meantime, with double voltage coming through, I have no idea whether I could've damaged the breakers themselves. Is that a possibility? I mean, when I first hooked up the plug and plug things in and something blew, I reset some breakers, but they've had that 240 V current (because I haven't changed it yet) and I wonder if I could have fried them themselves. I used to teach this stuff, for crying out loud (high school science), but I couldn't pull the current to voltage to resistance relationship equations out of my cobwebs at the moment if my life depended on it! Ah, the cost of education!

(In other news, $22 for an Allen wrench screw and nut kit for ONE foldout stair screw replacement. Holy smokes!)
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Old 05-12-2015, 11:46 PM   #21
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All normal breakers for 120 V RV and 120/240 V home use are rated up to 600 volts, so I doubt very much you have done any breaker damage.
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Old 05-13-2015, 12:05 AM   #22
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Got it. Thanks!
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Old 05-14-2015, 11:54 AM   #23
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So the old converter has two ports for negative and positive, but the new one does not. Can I put the existing black wire shown in the same port as the white wire or have I purchased in inflexible converter?
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Old 05-16-2015, 11:41 AM   #24
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Thanks, all! It works! Still not quite sure about the air-conditioner, but everything else seems to be cranking away.
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Old 05-16-2015, 12:00 PM   #25
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Hopefully you popped the input fuse on the converter and it isnt damaged or it has a protection circuit.

You can put the black and white wires under the same lug on the converter or move one of them to the other end of the other. Either way should be ok.

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