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Old 08-03-2016, 07:30 PM   #11
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Tigerbelle, it certainly can become confusing when you have to think about what is running on 12v and what is running on 120v, and whether you are plugged in, and whether you have solar, and whether there is sun for solar, and whether you left something on that should not be on when not plugged in, and whether......!!!
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Old 08-03-2016, 07:37 PM   #12
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Quote:
Originally Posted by Kountrykamper View Post
The converter should be supplying 12 volt to everything when plugged into 120 volt regardless of the battery disconnect switch position providing the breaker for the converter is turned on.
I think it is mostly a question of why the refrigerator and such 120v items are not working when plugged into a pedestal. Need the switch on for that, right?

That is how I sometimes find that I have turned off the master switch by unknowingly hitting it. I turn on a light and no light.
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Old 08-03-2016, 07:42 PM   #13
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Cathy is correct. In order to power anything in the trailer except the solar charger, the power isolator switch must be in the on position. When you turn the switch off, you are turning off all power. Being connected to a pedestal makes no difference. Pedestal power just means you're running AC power through the converter to supply DC for the trailer, rather than having the DC power come from the battery.

At least, that's how mine is wired. Leave the cutoff switch on unless you are storing the trailer, shore power or not.
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Old 08-03-2016, 08:42 PM   #14
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Originally Posted by Brian B-P View Post
I'm guessing that by "battery is disconnected", you mean by the disconnect switch. That would mean that the battery would not charge, but the converter is presumably connected directly to the DC power distribution (fuse) panel, so power should still be available to all circuits (including the refrigerator, lights, and fan). Unless this trailer's disconnect switch is wired unusually, the battery is on one side of the switch, and the converter and fuse panel together are on the other.

It's not clear to me that the converter is working: if the shore power is on, it should be providing power in place of the battery.
There have been some confusing answers, but this was very well written and correct. I don't have solar, but that shouldn't matter. The converter and battery are wired in parallel. I was plugged in to shore power the other night doing some work and turned the battery switch off. Nothing happens, except battery is now isolated (can't provide power if I were to unplug and can't be charged by the converter while plugged in), but all 12V items in the trailer still receive power directly from the converter. It sounds to me like you have a wiring issue. It sure would be nice if Escape had wiring schematics of their trailers.
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Old 08-03-2016, 09:07 PM   #15
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Yours is clearly wired differently from ours. When I turn the battery cut-off switch to off, I lose all power, whether I'm on shore power or not. So, I only turn it off when I'm storing the trailer. Others have described the exact same thing.
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Old 08-03-2016, 09:30 PM   #16
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Check your battery disconnect wiring. It should be installed in the positive battery lead between the battery and anything else. Ie, the battery lead from the positive battery terminal goes to one side of the battery disconnect switch and then the other side of the switch goes to the rest of the trailer circuitry.

If it's wired any other way, it's probably not correct.
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Old 08-03-2016, 09:43 PM   #17
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Originally Posted by rbryan4 View Post
Yours is clearly wired differently from ours. When I turn the battery cut-off switch to off, I lose all power, whether I'm on shore power or not. So, I only turn it off when I'm storing the trailer. Others have described the exact same thing.
I didn't mean to imply other trailers are not behaving as described, but that Brian's explanation is correct for our trailer. Based on what you are saying the disconnect must be wired in such a way that it kills power completely to the 12V fuse panel (isolates battery AND converter) which seems odd, but clearly not impossible.
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Old 08-04-2016, 07:19 AM   #18
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Quote:
Originally Posted by tdf-texas View Post
Check your battery disconnect wiring. It should be installed in the positive battery lead between the battery and anything else. Ie, the battery lead from the positive battery terminal goes to one side of the battery disconnect switch and then the other side of the switch goes to the rest of the trailer circuitry.

If it's wired any other way, it's probably not correct.
There is a difference if you have solar. The output of the solar controller is wired to the battery side of the disconnect switch so that it can charge the batteries even with the disconnect switch open.
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Old 08-04-2016, 07:54 AM   #19
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Let's look at the various scenarios of trailer electrical use.

Case 1: trailer on shore power. Battery disconnect closed. Solar not needed, battery charging from converter
Case 2: trailer on solar power. Battery disconnect closed. Converter not needed, battery charging from solar
Case 3: trailer in storage, battery not charging. Battery disconnect opened. Solar and converter not needed.
Case 4: trailer in storage, solar charging. Battery disconnect closed. Converter not needed.
Case 5: trailer in storage, converter charging. Battery disconnect closed. Solar not needed.

I see no case where solar needs to connected ahead of the battery disconnect switch.
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Old 08-04-2016, 11:35 AM   #20
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Thanks to everyone who has responded! She (my trailer) is back in the shop so that my RV guy can determine if the humming is coming from one of the frig fans, wired to the converter versus wired to the frig (since with the frig off, the sound continues.) I feel as though I've learned a ton about how the converter works, and I'm now thoroughly sold on this forum!
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