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Old 01-10-2016, 11:43 AM   #15
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Thanks so much for all the thoughts! Hubby checked the outlet and it shows 13.5 volts. We are not as concerned about this outlet itself as it is not one we have reason to use, but we are concerned about what it may say about a larger problem and especially since we have previously blown the Even Brake - e.g. is it related and thus definitely a larger 12 volt problem? We are scheduled to take it to RV shop on the 19th for other issues as well, so we are probably going to just wait and give them our findings and let them explore it further. We are definitely not touching that Even Brake meanwhile!!! Don't need to blow that a second time in case they are related issues! Myron, with your combination of 40 years of 12 volt experience and personal RV experience, you should write a guide on 12 volt issues - something that is needed! if anyone knows of a helpful book on 12 volt and RVing, would love to know about it.

Thanks again! I will post what we learn after we take it in.

Cheryl
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Old 01-10-2016, 12:18 PM   #16
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Thanks so much for all the thoughts! Hubby checked the outlet and it shows 13.5 volts. We are not as concerned about this outlet itself as it is not one we have reason to use, but we are concerned about what it may say about a larger problem and especially since we have previously blown the Even Brake - e.g. is it related and thus definitely a larger 12 volt problem? We are scheduled to take it to RV shop on the 19th for other issues as well, so we are probably going to just wait and give them our findings and let them explore it further. We are definitely not touching that Even Brake meanwhile!!! Don't need to blow that a second time in case they are related issues! Myron, with your combination of 40 years of 12 volt experience and personal RV experience, you should write a guide on 12 volt issues - something that is needed! if anyone knows of a helpful book on 12 volt and RVing, would love to know about it.

Thanks again! I will post what we learn after we take it in.

Cheryl
Ask hubby to check if it's +13.5 volts or - 13.5 volts when touching the red lead to the center pin.
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Old 01-10-2016, 01:06 PM   #17
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Twinboat,

He says he connected yellow to red and white to black in both a working outlet and the frying outlet and that both showed the same thing.
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Old 01-10-2016, 01:44 PM   #18
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Twinboat,

He says he connected yellow to red and white to black in both a working outlet and the frying outlet and that both showed the same thing.
Ok, he is checking the wires before the actual plug. The red of the tester need to go to the center pin of the plug, down on the hole.

Or look to see if the yellow wire goes to the same spot on both plugs.

That would confirm polarity.

If they are exactly the same, other factors may be involved.
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Old 01-10-2016, 02:20 PM   #19
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Twinboat,
He says he connected yellow to red and white to black in both a working outlet and the frying outlet and that both showed the same thing.
RVer402
Although both outlets read 13.5 volts on his meter, did they BOTH read +13.5V?...
(Or - 13.5V)?

OR did ONE read +13.5V and the OTHER -13.5V?

If one reads +13.5 volts (aka: "13.5V positive").... and the other reads - 13.5, (aka: "13.5V negative"), one of the two is wired WRONG.

Mel
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Old 01-10-2016, 08:31 PM   #20
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Thanks for additional info. Hubby is burnt out on this today. Will check tomorrow or may just add to list for repair eval next week. Either way will update here when we learn more. Thanks again!!
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Old 01-11-2016, 10:12 AM   #21
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I used to have a tester plug I can still remember how to build one and will describe, Job has only 3 parts. I will try to find links to one of 'em.
Plug it in and if it lights RED, you are wired backwards, GREEN is right and yellow.. You have serious issues (Yellow would indicate it's an AC outlet).
Alas I can not find the LED needed on line at this time
It was a 2 lead Green/Red/yellow, feed it power one way it is GREEN, the other RED and feed it AC it's Yellow.

A resistor, I'd have to do the math but around 1K is reasonable as I recall

Solder resistor to TIP contact on 12 volt plug.

Temp clip LED (one lead) to resistor and

Using test leads temp appyl 12 volt one lead to TIP end of resistor other to the other LED lead. Positive to Resistor.

IF it lights GREEN solder Resistor/LED connection and connect other LED lead to "Ground' terminal/wire on plug. NOTE> insulate positive (resistor and attached leads) line with heat shrink tubing or other tubing big enough to pass over LED before soldering negative terminal.

Assemble plug

That's it

(NOTE if LED lights RED when you test, revese leds)

That thing is still in a tool box here somewhere, but I have a lot of tool boxes. Handy tester.
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Old 01-20-2016, 10:35 PM   #22
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FYI update: it was reversed polarity in the 12 volt outlet. The other outlets checked out fine.

Still don't know the sourcecof the burned out board in the Even Brake but since the reversed polarity outlet is in completely different part of coach it doesn't appear to be a related problem. Time will tell. Haven't had the guts to find out yet.

Thanks again to all who shared ideas! So appreciated.
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Old 01-21-2016, 05:07 PM   #23
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If the problem was reversed polarity, then those four "fried" inverters are probably just fine. The protection diode in the inverters would have caused the internal fuse to blow, but that is all that should be wrong with them.

Replace the fuses and they'll be good to go.
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Old 01-21-2016, 05:27 PM   #24
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We did learn that and have already replaced one of the fuses and that one works great now. We were delighted! Looking to find ones that fit the other too. Each one has a different size fuse of course. Thanks so much for sharing, though! We need ALL the help we can get! We so much appreciate all the kind folks here!
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