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Old 07-16-2018, 04:33 AM   #15
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Originally Posted by LWBAZ View Post
Ron, it sounds like the breaker youíre describing is the one shown in the attached photo. In our 2018 45B Cornerstone, itís located in one of two circuit breaker panels on the side wall above the driverís seat ďtollĒ window.

That breaker in our coach does the same thing you described in your thread title; i.e., it will trip every so often for no apparent reason. When it does, I reset it and all is well until the next time it decides to trip. Monitoring it over time, Iíve noticed it seems most likely to trip when shore power or generator power is turned on or turned off. And yes, it trips when on clean 50 amp shore power and when running the generator.

Until I saw your post, I just assumed I had a weak breaker and have been meaning to buy a replacement when I get around to it. If youíre having the same issue with the same breaker, Iím now inclined to think the breaker may not be quite adequate for the loads being applied to it. In other words, it may need to be a 25 amp breaker instead of a 20 amp breaker.

Advice from those of you with more 110 volt AC electrical system expertise than I have will be appreciated!
You do not upsize breakers, because the wire it protects from melting, is not heavy enough for more amps then the breaker is rated. Breakers protect wiring, not devices plugged into it.

Besides it seem to be a GFCI breaker that serves two purposes.

Overload above 20 amps, probably not the issue, and a fault to ground. That can kill you but a larger breaker won't fix it.
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Old 07-16-2018, 05:37 AM   #16
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Agreed, breaker protects the wire. 20A breaker for 12 gauge wire. Don't increase the rating.

Also agreed if that is a GFCI breaker as pictured (white button) then most likely it is the GFCI that is tripping and not an overload.

GFCI compares current on the hot with current on the neutral, if there is a difference it trips. It will also trip if neutral and ground are inappropriately connected.

Previously mentioned checks, especially loose connection, is a good thing to look for. The tester shown will also tell you if there is a miswire at the outlet.

I believe many of the outlets employed use an insulation displacement type of connection where incoming and outgoing wires are not cut, so it is possible the connection to a given outlet could be flaky but the feed to downstream outlets will be fine.

It is also possible the GFCI part of the breaker is misbehaving.
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Old 07-16-2018, 08:56 AM   #17
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Was the solution to your problem a replacement of the problematic outlet?
Hi Larry,

He didn't replace the outlet, just reseated the wiring connections. There was some muttering going on about not much slack in the wiring to get the connections properly seated.

We've been in the coach for about 2 months post repair with no GFCI circuit breaker trips. Pretty sure that the outlet wiring was the source of the problem.

Good luck with yours.

Take care,
Stu
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Old 07-16-2018, 09:03 AM   #18
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as a last idea i sat down tp read the owners user manual
an din reading it is says when hooked up to 15,20 or 30 amp turn off inverter #2
above the toll window
i guess the toll window is the sliding window by the drivers side i hate so much
my drive way is so narrow when i store my coach i need to have my head out the window and its impossible to do it with the Toll window i guess its to hand someone a quarter for a toll,

so i turned off the #2 inverter in the breaker panel above the drivers seat
assuming that is what they are talking about i noticed my voltage went up in the coach from 116 to 119 now my next question if i forget (im Old) to turn inverter #2 back on what is going to happen if im operating on inverter only does to just take over a load and balance between them or is #1 inverter for some circuits and #2 for others ??

see photo of the #2 breaker i turned off figuring this is the one they discribe.
Ron,

Turning OFF that breaker is the one the manual is referring to. When you turn this breaker OFF it forces the items on inverter #2 to be supplied by the batteries even if plugged into shore power. If you forget to turn it back ON it will continue to supply those circuits from the batteries. If the inverter breaker is turned OFF in the other circuit breaker panel you will kill all power to those items on that circuit. Each inverter has its own items that it powers. One inverter will not pick up the load of the other inverter they are separate. The only time they work together is when the charger portion is charging the batteries.
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Old 07-16-2018, 12:29 PM   #19
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Hi Larry,

He didn't replace the outlet, just reseated the wiring connections. There was some muttering going on about not much slack in the wiring to get the connections properly seated.

We've been in the coach for about 2 months post repair with no GFCI circuit breaker trips. Pretty sure that the outlet wiring was the source of the problem.

Good luck with yours.

Take care,
Stu
Thanks Stu - I appreciate the info.

The weird thing in our case is that the living room breaker doesn't seem to trip in normal usage; only when shore or generator power is initiated or removed.

I'll do some experimentation and see what I can learn. For the cost of a replacement breaker, I'll probably try that first. If that doesn't fix it, I'll have a spare breaker. (As you probably know, having a spare part usually means you'll never have a failure of the part for which you have a spare...)
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Old 07-16-2018, 04:18 PM   #20
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If the breaker trips only when going from, or to generator I would try replacing the breaker first. You can swap that breaker with one of the other like breakers and see if problem stops, moves, or if it stays in the living room. That will give you a better idea where to look for the problem.
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Old 07-16-2018, 04:36 PM   #21
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The weird thing in our case is that the living room breaker doesn't seem to trip in normal usage; only when shore or generator power is initiated or removed.

For the cost of a replacement breaker, I'll probably try that first. If that doesn't fix it, I'll have a spare breaker. (As you probably know, having a spare part usually means you'll never have a failure of the part for which you have a spare...)
Hi Larry,

Indeed, your tripping circuit breaker is different from mine. Mine seemed to be random. Still, your description suggests that it's more likely a ground fault sense issue rather than a circuit overload issue.

Here's where I found a 20 amp GFCI identical to the OEM installed: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

By your hypothesis, since I'm now carrying a spare, perhaps that's what is saving me from annoying tripped CB's.

Take care,
Stu
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Old 07-16-2018, 06:20 PM   #22
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Dang, Amazon is really proud of that breaker - $52.99 AFTER they brag about an 11% discount!

I think I'll try Turbojack's approach of swapping breakers before I drop half a C-note for a circuit breaker!
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Old 07-16-2018, 06:50 PM   #23
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several times in the last few days i've noticed i have popped the living room breaker i reset and all is well i wonder if my power cord from home was too long and causing a voltage drop i had a 100 foot cord conected to my coach cord
just on a 15 amp plug i just shorten it to 50 ft and put knew ends on each end of the cord cause looked to be some melting going on with one end of the shore cord, its on a 20 amp circuit at home but i never pop that just the 20 in the coach
thinking maybe i have a bad breaker in the coach ??
the breaker is doing its job. Find out what is on the circuit and what is causing it to trip. Turn off all the electric to the rig except the problem circuit. Find out everything that is on that circuit. Blow dryer and toaster?? coffee pot? see where I'm going? if nothing obvious, start removing the outlets one at a time and look for loose connections on that circuit.
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Old 07-16-2018, 08:58 PM   #24
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I have the same problem. Breaker labeled living room trips randomly. Of course when I was in for warranty repairs in Middlebury it worked perfectly. Happens even when no load on circuit.
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Old 07-16-2018, 09:10 PM   #25
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So now we have a 2018 Anthem (N6CUS), a 2018 Cornerstone (me - LWBAZ), and a 2019 Anthem (Dippelj) all randomly popping the exact same circuit breaker.

Call me crazy, but I'm thinking there just might be a common cause. Quite the coincidence if not.
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Old 07-17-2018, 05:01 AM   #26
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So thru pictures, we discover that it is a 20 amp COMBO GFCI breaker, marked " living room ".

The tripping probably has nothing to do with amp draw or load on the circuit.

The picture shows more then one GFCI breaker and if they don't trip, its not something in the incoming power wiring.

I would first see if an outside outlet is on that circuit that may be getting water in it. That can cause ground faults.

If nothing found there, then it gets down to looking at each receptacle, in that circuit, for a neutral wire very close to touching a ground conductor.

If the neutral and ground touch, the neutral current will travel down the ground conducter and cause the imbalance that GFCIs monitor for.
If you tripping a GFI it's probably because you have 2 GFI's in series. One in the coach and on in the 20 a shore power. 2 GFI's don't play well together.
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Old 07-17-2018, 05:05 AM   #27
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Dang, Amazon is really proud of that breaker - $52.99 AFTER they brag about an 11% discount!

I think I'll try Turbojack's approach of swapping breakers before I drop half a C-note for a circuit breaker!
do not replace parts. Find the cause. You cannot plug into a GFI circuit.
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Old 07-17-2018, 06:53 AM   #28
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Since we now know that 3 different people have the same problem of living room tripping. All 2018 & newer. If we have 3, good chance there are way more then 3.

Is the breaker really just a gfi breaker or is it an arc fault or dual function breaker?

A gfi breaker will trip on two different things. 1. It will trip on an overload. 2. it will trip if it sees a 5 milliamps of current unbalance or if the neutral wire is touching the ground wire.

We need to find out exactly what is on this circuit. There may be one device that has a random leakage of 5 ma or it could be a few items that have a small leakage that with them all being on the same circuit will add up to 5 millamps.
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