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Old 05-19-2012, 02:29 PM   #16
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Wiring GE SunSmart Digital Timer to a 3 way switch


Your diagram is way too small to make out anything

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Old 05-24-2012, 11:40 PM   #17
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Wiring GE SunSmart Digital Timer to a 3 way switch


There are 2 ways to wire GE 15312 sunsmart for 3-way.
It depends if you are replacing Line switch or Load switch.
Following link has illustrations for both single-pole and 3-way:
http://waterheatertimer.org/How-to-w...312-timer.html
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Old 05-25-2012, 03:28 PM   #18
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Wiring GE SunSmart Digital Timer to a 3 way switch


Thanks guys, but I'm still confused because of the configuration I have in both junction boxes, which looks like this:

Front door light switch wiring002.pdf

(I hope it's easier to see this time)

Both boxes have a black and white nutted together from two different cables coming into the box. Do I separate those and use them to connect the timer? The wiring diagram that came with the timer shows the whites nutted together, the black from one cable connected to the black on the timer and the other black connected to the blue on the timer. I think I'm trying to install the timer on the load side but I'm not sure.

On what I think is the line side, the diagram says to use the jumper that came with the timer and connect it to the two blacks from the two cables in the junction box.

I thought about trial and error but I don't want to damage anything. Any other thoughts?
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Old 05-26-2012, 01:23 AM   #19
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Wiring GE SunSmart Digital Timer to a 3 way switch


You are replacing 3-way switch.
This is not simple because wiring is different depending if you are replacing Line side or Load side switch. Plus remaining 3-way switch must be rewired or the timer will not work.
Open following link and view each 3-way illustration, and read the text.
http://waterheatertimer.org/How-to-w...mer.html#3-way
Difference between your drawing, and illustrations on link is the wire color on 3-wire cable. The 3-wire cable travels between both switches. Your black and white wire colors are reversed from illustrations on link.
Otherwise there are no differences.
The dark screw is common screw.
Here's how to start:
Timer red wire connects to red wire in all cases.
Timer white wire connects to the blue wire nut.
If you are replacing Line side 3-way switch, do the following:
Timer black wire connects to black wire that is connected to dark screw.
Timer blue wire connects to white wire that is connected to switch.
If you are replacing Load side 3-way switch, then reverse timer blue and black wires.
##### Remember, the timer replaces 1 switch, and the remaining 3-way switch must be rewired as shown in illustrations.
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Old 05-26-2012, 01:34 PM   #20
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Wiring GE SunSmart Digital Timer to a 3 way switch


I looked over those illustrations the first time you posted the link but they didn't seem to explain my black/white nutted pairs. I think your explanation of connecting the white timer wire to the nutted pair goes along with the directions that came with the timer. I'm still not sure which is line and which is load, but I'll give it a try tomorrow and let you know how it works out.

Have a great weekend!
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Old 05-26-2012, 08:16 PM   #21
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Wiring GE SunSmart Digital Timer to a 3 way switch


2 cables enter box.
There is 3-wire cable, and 2 wire cable.
The 2-wire cable has black wire that connects to switch dark screw, and white wire connects to blue wire nut.
Turn power off.
Disconnect black wire from switch.
Separate white wire from other wire under wire nut.
Turn power ON.
Wear gloves, stand on dry surface, and never stand on bare ground.
Tape tester leads to wood sticks.
Test black wire to white wire.
Test black wire to bare ground.
If black wire shows power, then that is Line side.
If no power, then that is Load side.
Test white wire to bare ground should show NO power, or there is a short or this switch is used for something else.
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Old 05-29-2012, 10:15 AM   #22
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Wiring GE SunSmart Digital Timer to a 3 way switch


I got it working!!! Thanks to Geno and hammerlane for your help!
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Old 05-29-2012, 10:57 AM   #23
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Wiring GE SunSmart Digital Timer to a 3 way switch


Quote:
Originally Posted by Chuck42 View Post
I got it working!!! Thanks to Geno and hammerlane for your help!

What did you do??
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Old 05-29-2012, 12:14 PM   #24
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Wiring GE SunSmart Digital Timer to a 3 way switch


Here are the connections I made from the timer to the box:

Timer red wire to red wire.
Timer white wire to nutted black/white.
Timer blue wire to black wire connected to dark screw.
Timer black wire to white wire connected to switch.

I also connected the jumper that came with the timer to the black wires on the load switch.

It's worked for two days now.
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Old 03-04-2013, 12:07 PM   #25
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Wiring GE SunSmart Digital Timer to a 3 way switch


I'm trying to install the same device but from what I can tell, have a 4-way switch. House was built 2 years ago so modern stuff. Upon removing the original switch, it has the following:

--two blacks on one side of the switch (marked "in" and "out")

--two reds on the other side, also marked in and out

--the ground.

--the bundle of whites in the back of the box

I assume on the timer, black has to go to the "in" black, and the blue goes to the "out" black, white would go to the bundle of whites in the box, and green would go to the ground.

That leaves me the two in-and-out reds, and one red left on the timer. Should I just hook those three up with a wiring nut and cross my fingers? Also, if there are 2 other switches for these lights, it's news to me.

Thanks in advance and let me know if you need further detail.
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Old 03-04-2013, 01:27 PM   #26
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Wiring GE SunSmart Digital Timer to a 3 way switch


That is a four way switch. You need to put the timer at one of the other switch locations and I am not even sure if it can be in a four way way setup . The directions do not show that option.

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