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I have an existing outdoor outlet and want to put move it to another location but I want to add a switch to control the relocated outlet plus add a new outlet in another location (both controlled by the outdoor switch).

If possible on one or both of the outlets, can only 1 set of receptacles be controlled by the switch while the bottom receptacles are always active? The switch and 2 GFCI outlets would have weatherproof in-use covers.

Can anyone help advise how this should be wired? currently there's a 14/2 at the exterior wall. Any drawings on how this should be wired would be much appreciated!

Thanks in advance

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GFCIs can't be half switched

Unlike a regular receptacle (where you can break the tabs off to get two independent receptacles on one yoke), a GFCI receptacle has a single set of hot/neutral inputs, so it can't be "half switched", unlike a standard receptacle which will let you do that. So, putting the GFCIs at the receptacle locations is out.

Putting a GFCI outside isn't a great idea anyway

GFCIs contain a fair bit of electronics; this means that even with a "bubble cover" protecting them, they're still vulnerable to moisture that gets past the while-in-use cover. This means that it's better to put GFCIs inside; in addition, a GFCI inside can trip and protect the boxes outside if they do succumb to water infiltration.

But, there's a solution to this

Get a deadfront GFCI device, like the one shown below, and mount it inside in the nearest readily accessible location opposite from where the existing 14/2 terminates (picture is for exposition only).

deadfront GFCI

Then, you can extend the circuit with a 14-2 from the LOAD terminals of the deadfront GFCI to the switch location. You'll need a weatherproof cover for the switch here, as depicted below (again, picture for exposition only):

weatherproof switch cover

Last but not least, you then can run 14/3 from the switch box to the receptacle boxes, with the black in the 14/3 as the always-hot and the red as the switched-hot. Other than needing an "extra duty" while-in-use receptacle cover (I recommend the metallic ones, as the plastic ones have a bad habit of breaking) and needing to be Weather Resistant receptacles, these are wired as any other half-switched receptacle is -- with the black (hot) pigtail to one brass screw, the red (switched) pigtail to the other brass screw, and the tab on the hot (brass) side broken off. The neutral pigtail goes to a silver screw and the ground pigtail goes to the green screw, as usual.

  • +1 Or you could change the breaker to a GFCI type and eliminate the deadfront device, and follow all the remaining advice. – bib May 14 '18 at 11:15

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