If you want an eye-opener on that, just try a 3-way switch, which are different even within the same brand/model! So position cannot be relied on you must examine labeling and screw colors. There is no central authority who makes terminal positions exactly the same on every device. It sounds like you got nailed by the positioning issue. So why the 3 cables?įirst, identify LINE and LOAD on the device Then its load wire would come into the GFCI outlet as its line cable and there would be one load cable to the next outlet and then that outlet would feed the last outlet on the circuit. Since the inside outlet initially continued to work, I would think that it would be first in circuit directly from service panel. White wire goes to GFCI Line (position 1) White wire goes to GFCI Line (position 2)īottom Right cable: black wire goes to GFCI Line (position 2)īottom Left cable: black wire goes to GFCI GFCI Load This is how it was wired (and I believe is the way I wired the new GFCI receptacle) Top cable: black wire goes to GFCI Line (position 1) Worse, now the inside outlet isn't working either! Is one cable the from the service panel and the other two load cables with one going to the inside outlet and the other going to the next outlet in the garage? (I would think the panel cable would be the one coming in from the top of the outlet box). I have been looking for a wiring diagram for GFCI when there are 3 cables but haven't found any. I tried replacing the GFCI receptacle and thought I took care to put the wires in the same location, but now nothing works! The inside outlet no longer works so now I'm trying to figure out the correct way to wire the GFCI outlet. There is one coming from the top and two from the bottom. In the box for the GFCI receptacle, there are 3 cables coming into the box. At this point, the outlet in the house appears to still work but the ones in the garage do not. I plugged a tester into one of the regular outlets in the garage and accidentally hit the button to throw a fault. There is also another regular outlet on the circuit that is inside in the closet (on wall between closet and garage). There are two regular outlets in the garage as well that I believe are "downstream"/protected by this outlet as required by code. Installing a GFCI breaker will require working inside your service panel, which may have always-on 240VAC.I have a GFCI receptacle in the garage. You are free to use any type of outlet you prefer. Now it doesn't matter what the outlets are. For A and B to be unprotected is illegal under Code and dangerous.Īnother option is to replace the circuit breaker feeding this string of outlets with a GFCI circuit breaker. Now, A and B are not protected by GFCI, outlet C is the GFCI and it protects outlet D. Outlet A would be the GFCI, protecting outlets B C and D. Suppose the chain has outlets A B C D, all in the kitchen. A GFCI outlet can only protect other outlets which are downstream from it. There's an "upstream" (toward the service panel) and a downstream. In this circuit, the outlets are "daisy chained" - power comes from the service panel (breaker box) to one outlet, then to the next, then to the next. The problem is the physical constraints of wiring.
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