Is it ok to make each outle tin a GFCI circuit have its own GFCI outlet? Wh
en my house was built, one GFCI outlet in one bathroom protects the outlets
in three bathrooms, so If it trips, the other outlets go out. I assume the
re is not a disadvantage other than cost to have each bathroom have its own
GFCI outlet even if it is on the same circuit?
Agreed. Back when GFCI's were first introduced, they were very
expensive. Builders often installed one and used it for all outlets
that were required to be protected. My house has one GFCI that
protected 3 bathrooms, the garage, and 2 outdoor outlets. Doing that
probably saved them hundreds of dollars. Today, it make little sense.
What about your kitchen counter?
Maybe this explains why, when my GFCI breaker failed, the price shown
beneath it in the store for the new one was a lot, but when the cashier
rang it up, it wasn't much at all.
Yes, it's OK.
I know you didn't ask, but I'll toss this out anyway.
You will need to move the wires on the first GFCI off of the Load terminals
and either attach them to the Line terminals or in some other manner ensure
that they are connected to the source hot and neutral. Basically, what you
need to do is make sure that each downstream receptacle is wired correctly
so that the previous GFCI doesn't impact it when it trips.
Of course, this leads to the question of why is the first GFCI tripping. I
can't recall the last time a bathroom CGFI tripped in my house. My garage
ones have tripped when the holiday lights got wet or something similar, but
my bathroom GFCI's never trip.
On Friday, February 14, 2014 8:19:12 AM UTC-5, firstname.lastname@example.org wrote:
When my house was built, one GFCI outlet in one bathroom protects the outle
ts in three bathrooms, so If it trips, the other outlets go out. I assume t
here is not a disadvantage other than cost to have each bathroom have its o
wn GFCI outlet even if it is on the same circuit?
Yes and no. AFAIK, you're not supposed to have a GFCI on
a circuit that already has a GFCI. So, if I understand it
correctly, what you'd like to have is one GFCI in each bathroom.
That GFCI in turn would protect the other downstream receptacles
in that bathroom. That would be easy to do if you were wiring from
scratch. To do it now, you have to get a non GFCI circuit into
the second bathroom. I can see two ways to do that.
1 - Run a new circuit.
2 - Find where the first receptacle in the second bathroom is
tied into the GFCI chain in the first bathroom. Have each
receptacle in the first
bathroom have it's own GFCI receptacle, ie don't use the load
side of any of them, up until where the branch point is going
to bath 2. Just pass the line side through to each
receptacle up to the point that the second bathroom is connected.
If there are other outlets down the line, from that point on,
they could be connected to the load side of the last GFCI.
=====gfci rec bath 1
||============gfci rec bath1
||=============gfci rec bath1 load
gfci bath2 rec/load side========rec===rec
Maybe I'm misunderstanding what you mean by "a circuit".
I consider a circuit to be a number of devices that are all controlled by
the same breaker. Is that wrong? If it's not, then don't you have multiple
GFCI's on the same circuit in your picture below? It looks like all of the
GFCI's are sourced from the same breaker. I'm not saying your picture is
wrong, I'm just questioning how the picture below relates to your words
If you are saying that you shouldn't have _redundant _GFCI's (a GFCI
connected to the load side of an upstream GFCI) then I agree, but that's
different than "not supposed to have a GFCI on a circuit that already has a
Could you clarify that for me?
Just to be clear, this diagram assumes that the 2nd bathroom is not
connected directly to the load side of the first GFCI, right? If it is,
then those first 2 "gfci rec bath 1" are not needed. I say that just in
case the OP missed that subtle point.
And if the GFCI in bathroom 2 is more sensitive than the one in bathroom 1, a ground fault in bathroom 1 can kick the gfci in bathroom 2 before kicking itself. Mabee a SLIM chance, but possible??
==========================You don't understand how a GFI works.
GFIs do not look at the line VOLTAGES, they look at the load CURRENTS.
You can connect anything you like anyway you like on the LINE side of a GFI and not effect its operation. In a way, the entire electric grid is in parallel on the line side. It is an imbalance in the LOAD side CURRENTS that trip a GFI.
On Friday, February 14, 2014 1:44:11 PM UTC-5, email@example.com wrote:
Not if it's wired the way I described and showed it wired above, which
is the same way that DerbyDad is saying. The GFCI protected portions
of the circuit are separate from one another. They are not daisychained,
ie, with the second one being connected to the load side of the first.
A fault on one will have no effect on the other.
On Friday, February 14, 2014 12:38:30 PM UTC-5, DerbyDad03 wrote:
Yes, the above is what I meant. You're right, the way I
worded it, it was misleading. In the OP's case if he just put
another GFCI in the second bathroom, it would be downstream from
the first GFCI in the first bathroom. That is what I was
Right. I wanted to show the more general case. We don't know
where it's connected. If it's connected to the last of 4 GFCI's
in the first bath, then he'd need 4 GFCI receptacles in the first
bathroom. In the example, he needs two.
Yes, if bath 2 ties in at GFCI one, then he only needs the existing
GFCI. But with Murphy's law, it's probably tied in on the last receptacle. :)
Actually I just read it again and it's 3 bathrooms. Depending on
the sizes, usage, etc, he might want to consider pulling a new circuit
to split the load. Two hair dryers at the same time and you're
Economics, when my house was built in 1994 GFCI thing was pretty new.
One GFCI was shared like that. But other than testing it once in a while
it never really tripped. All I have to remember is it feeds more than
one bathroom. Like wise exterior outlets are wired like that. Over time
I added few more GFCI with indicator LED which is more convenient.
On Fri, 14 Feb 2014 05:19:12 -0800 (PST), firstname.lastname@example.org wrote:
Likely would not work, since being in parallel all the GFCI devices
would see the same voltage and voltage differences - so ALL might trip
at the same time. Have never tried it, but it would not surprise me if
you had that problem.
On Fri, 14 Feb 2014 13:31:43 -0500, email@example.com wrote:
Ref parallel GFCIs
The GFCI only responds to things on the load side. You can feed all
the GFCIs you want from the line side.
The only real issue with them in series is which one might trip in a
fault. The situation is not uncommon tho. If you have equipment with a
cord mounted GFCI (pressure washer, boat lift etc), you are likely to
be plugging it into a GFCI protected circuit.
Having them in series might be helpful in determining why one might
I think what folks are saying is that you should daisy chain from the line
side of the first gfci to the second room where you put the gfci, and daisy
chain from the line side of the second gfci to the third bathroom. That w
ay, each gfci sees an uninterrupted power source back to the circuit breake
r/fuse box. Each bathroom can then daisychain from the load side of its re
spective gfci to any other outlets and maybe a ceiling light in that same b
The only shortcoming of this method is that when the ceiling lights are als
o on the protected side of the gfci, if it does trip, you will lose all pow
er to the room and it will be totally dark unless it is daytime and there i
s a window in the bathroom. At night you are SOL if that happens.
On Fri, 14 Feb 2014 13:41:39 -0800 (PST), " firstname.lastname@example.org"
I don't suppose it helps much at this point but the rule that allows
you to put multiple basin receptacles in more than one bathroom on the
same circuit, also says it must only serve those receptacles, not the
light. OTOH if the circuit only serves one bathroom, it can pick up
everything in that bathroom. Having the ceiling light on the GFCI or
even on with the receptacle is still a bad design decision.
The code is not a design manual.
On Friday, February 14, 2014 11:15:13 PM UTC-5, Gz wrote:
I agree that it would be a good idea to have more than one circuit.
I suggested that he consider the option of running a new circuit.
But what he has, with non-GFCI receptacles is apparently working.
At least he's not complaining about it. Changing them to be on
separate GFCIs doesn't make any difference with regard to the possibility
of the load of 3 hair dryers. Nor is there a safety hazard, as long
as the circuit has the proper size breaker.
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