Model # 15312

Internet #202788253

GE 3-Way Sunsmart In-Wall Digital Timer
0043180153128

GE

3-Way Sunsmart In-Wall Digital Timer

  • Convenient automation for lighting, appliances and electronics
  • Follows the sun, adjusts for dusk and dawn in any location
  • Random program function for added security
$16.52 /each

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Product Overview

Save energy, save money and feel secure with the SunSmart Digital In-Wall Timer from GE. This state-of-the art timer delivers convenient automation for lamps, seasonal lighting, appliances and electronics while featuring SunSmarttechnology that automatically follows sun, adjusting for dusk and dawn in any location. The timer also features a random program function for added security, back-lit LCD screen, seven on/off settings per day, manual override and power outage backup ensuring it is ready at a moment's notice. Simply set it and forget it. The GE SunSmart Digital In-Wall Timer works with CFL, LED and incandescent light bulbs.

  • Seven on/off settings per day
  • Random program function for security
  • Manual override feature
  • Power outage backup
  • Auto adjusts for daylight savings time
  • SunSmart technology automatically follows the sun and adjusts for dusk and dawn settings in any location
  • Replaces wall switch
  • Back-lit LCD screen
  • Works with CFL, LED and incandescent bulbs
  • White and almond colors included
  • Note: Product may vary by store
  • Click here for more information on Electronic Recycling Programs

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Customer Questions & Answers

72 Questions171 Answers

Customer Questions & Answers

3-Way Sunsmart In-Wall Digital Timer
3-Way Sunsmart In-Wall Digital Timer

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6 answers

Does this auto adjust dusk times?

This question is from 3-Way Sunsmart In-Wall Digital Timer
Asked by
badwzrd
September 2, 2012
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Answers (6)

Asked by
Snohomish
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Home Improvement Profile: DIYer
August 13, 2015
Answer: 
Yes, you set it for the approximate area and then you can also additionally adjust it be be closer to the current values so it will be a little off once each year unless you adjust it near the solstice dates so it can guess closer. It not like it has GPS or anything like you could do with a full house automation system. I have mine on the entry lights which is an LED lit chandelier over the pond so it Read More
Yes, you set it for the approximate area and then you can also additionally adjust it be be closer to the current values so it will be a little off once each year unless you adjust it near the solstice dates so it can guess closer. It not like it has GPS or anything like you could do with a full house automation system. I have mine on the entry lights which is an LED lit chandelier over the pond so it only need to be approximate. I changed the lights and switch 4 years ago and all have ran without any problems. It will do both single pole (like I have it) and 3 way. The cover acts just like a normal switch for manual on a off. The timer events are simply triggers and are not altered by the manual state like some timers. If you want to shut them off early you can and they will still go on next sunset. I have mine go off around midnight since I have a street light nearby and a motion triggered spot light covering the access to the front entry area if anyone (or creatures) approaches. That's a lot more effective even if it is only to chase off a thirsty raccoon. I do have to remember to turn it off on Halloween though. Read Less
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Asked by
WA
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November 7, 2013
Answer: 
Kind of. You can select from South, Central, or North. But if you live far north (e.g. Seattle), it doesn't really track it all that well. If you REALLY want it dawn/dusk, you'll need to override the setting a couple times a year.
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Asked by
Scottsdale, AZ, USA
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February 21, 2013
Answer: 
Yes the timer on off algorithm calculates both dusk and dawn times for the zone you set.
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Asked by
WI
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January 31, 2013
Answer: 
Yes. You set your geographic location (south, central, north) along with the time and it auto adjust for the seasonal changes.
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Asked by
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October 17, 2012
Answer: 
yes
pick ur location
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Asked by
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September 6, 2012
Answer: 
Yes, it automatic adjust using a celestial clock and the location you enter.
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5 answers

Does this timer automatically adjust to sunrise and sunset every day?

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Asked by
Rodl1212
Blackwood, NJ
April 29, 2013
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Answers (5)

Asked by
Boston, MA
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Home Improvement Profile: DIYer
October 11, 2016
Answer: 
You have to go through the set up and set the actual time, then it asks you what zone you live in and also what time the sun rises and sets, you can approximate, then yes it will go on and off around those times. The unit is inside your house, so it has now way of knowing when it gets dark out and when it is light out to turn on and off. You have to set it, which was pretty easy
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Asked by
Dover, DE
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Home Improvement Profile: DIYer
March 1, 2016
Answer: 
I've only owned mine for a week. But, according to the instructions and description, the answer is "YES, it does adjust the times for DUSK and DAWN all year round"
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Asked by
Lillian, AL 36549, USA
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April 30, 2013
Answer: 
Yes it does... I haven't timed it exactly to know how much but in a weeks time I notice a difference of about 5 minutes. There is also a 'random' option which varies any programmed times or the dusk/dawn feature to make the lights look more like they are being turned on by a person and not a photocell or timer.
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Asked by
WI
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April 30, 2013
Answer: 
Yes.
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Asked by
Scottsdale, AZ, USA
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April 30, 2013
Answer: 
Yes it does. If you program it dusk to dawn and make sure you set the zone. If it is a little too late or early for either dusk or dawn settings with the built in algorithm, you can adjust it up or down a few minutes.
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5 answers

I have only 4 wires on my 3 way switch and 5 on the Ge timer?

This question is from 3-Way Sunsmart In-Wall Digital Timer
Asked by
Fit to be wired
kentucky
August 13, 2012
How do i replace my current 3 way timer switch that has 4 wires. Black,Red, white and a ground. The GE timer model # 15312 has black, red white, green for the ground and BLUE. Do I not need one of these wires and just put a wire nut on the extra?? If so which one? My current timer works with only 4 wires
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Answers (5)

Asked by
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September 7, 2016
Answer: 
In the instructions it shows you. Cap off the red wire, it's extra. The blue is your continuous hot to your load.
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Asked by
Colorado
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Home Improvement Profile: DIYer
August 29, 2016
Answer: 
The installation instructions show how to connect the wires for various configurations, including a 3-way switch. Not all wires are connected in all configurations.
If you don't have the installation sheet, it is right here as a PDF on this product page of the Home Depot web site. I can't remember exactly where; right edge maybe, or under one of the tabs under the photo.
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Asked by
Scottsdale, AZ, USA
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February 21, 2013
Answer: 
The red wire on the new timer is for the return to the other switch in the three way circuit. The blue wire is for the load you are connecting.
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Asked by
California, USA
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November 10, 2012
Answer: 
this timer needs neutral to work and not all switch boxes have neutral. Intermatic timer does not need neutral
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Asked by
Atlanta, GA
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August 21, 2012
Answer: 
Dear Customer,
Thank you for your question.
I did reach out to the manufacturer on your question and below is their response to you:
All of the wires coming off the GE 15312 timer are necessary for the timer to function. Due to differing wiring codes, age of the home, and other uncertain factors such as the electrician who originally wired the home, wiring is unable to be identified strictly by the Read More
Dear Customer,
Thank you for your question.
I did reach out to the manufacturer on your question and below is their response to you:
All of the wires coming off the GE 15312 timer are necessary for the timer to function. Due to differing wiring codes, age of the home, and other uncertain factors such as the electrician who originally wired the home, wiring is unable to be identified strictly by the color of the wires in the wall. Please contact a licensed electrician if you are unable to use the wiring diagram because you cannot identify each wire in the wall. This will ensure a safe and correct installation
Hope this helps. Read Less
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5 answers

I only have two wires in wall outlet. A black (hot) and a white (Neutr.).

This question is from 3-Way Sunsmart In-Wall Digital Timer
Asked by
Tomster2000
NE Illinois
August 13, 2012
I connected the switch's black and blue to the outlets black wire. I connected the switch's white wire to outlet's white. I capped the switch's red wire (unused) and connected the switch's green wire to a screw in back plate of outlet's box. I successfully programmed the switch, but I won't turn lights on, nor can I manually turn lights on from switch. Any solutions would be greatly appreciated. Thanks in advance.
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Asked by
South Orange, NJ
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July 26, 2016
Answer: 
Not sure you can do it. It likes the source black coming in, load black (blue on the switch) to go to the light/load, return from load to white cluster with the switch white and return to the breaker. Your wiring isn't in line with what I understand is the current electrical code. ... so you can't do it without wiring from your breaker to the junction box.
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Asked by
Scottsdale, AZ, USA
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February 21, 2013
Answer: 
In order for a switch or timer to work there needs to be a line, load and neutral to complete a circuit. The one black wire you have connected to the timer is powering the timer. There needs to be another black wire in the box to turn the lights off and on with a switch or a timer. did the original switch turn the lights on and off before you opened the box?. There must be another black wire in there Read More
In order for a switch or timer to work there needs to be a line, load and neutral to complete a circuit. The one black wire you have connected to the timer is powering the timer. There needs to be another black wire in the box to turn the lights off and on with a switch or a timer. did the original switch turn the lights on and off before you opened the box?. There must be another black wire in there somewhere! Read Less
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Asked by
J
Baltimore, MD
December 2, 2012
Answer: 
The previous switch was wired as a "switch leg", meaning the black of the romex is likely a constant hot from the fixture to the switch, and the white feeds from the switch back to the fixture. The neutral joins the fixture directly and never travels down to the switch. A recent code change now prohibits this type of wiring (most likely because of all the new electronic devices which require a neutral). Read More
The previous switch was wired as a "switch leg", meaning the black of the romex is likely a constant hot from the fixture to the switch, and the white feeds from the switch back to the fixture. The neutral joins the fixture directly and never travels down to the switch. A recent code change now prohibits this type of wiring (most likely because of all the new electronic devices which require a neutral). However, as long as the ground has good continuity back to the panel, it will work to use the ground as the neutral. (This is a violation and a big no-no for anything which uses much current, but for something as minimal as an electronic timer, it's fine.) Connect both the green and white of the timer to the ground. Connect the black of the timer to the black coming down from the light. Connect the blue output of the timer to the white feeding back to the light. And of course cap off the red. Read Less
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Asked by
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October 17, 2012
Answer: 
black is line blue is load that why it will not work
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Asked by
Atlanta, GA
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August 14, 2012
Answer: 
Hi Tomster2000,
Thank you for your question.
Unfortunately this timer cannot be wired in a switch location with only 2 wires. This timer requires your switch location to have access to all 4 wires necessary for a lighting circuit. Your wiring should have a Line (hot), load, ground and neutral wires. A standard toggle switch will have only a Line and Load wire on it (typically it will also have a ground Read More
Hi Tomster2000,
Thank you for your question.
Unfortunately this timer cannot be wired in a switch location with only 2 wires. This timer requires your switch location to have access to all 4 wires necessary for a lighting circuit. Your wiring should have a Line (hot), load, ground and neutral wires. A standard toggle switch will have only a Line and Load wire on it (typically it will also have a ground wire, but not in all instances.) Depending on the age of the house and who originally wired this switch, neutral return wires may not have been routed through this location. Typically the neutral wires are a bundle of white wires in the back of the box not connected to anything else. Without all 4 of the wires described above, it would be necessary to purchase a timer that does not require the use of a neutral wire (white wire on the timer.) this will allow you to install a timer in a switch location with only 2 wires.” Read Less
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Customer Reviews

3-Way Sunsmart In-Wall Digital Timer is rated 4.0 out of 5 by 172.
Rated 4 out of 5 by from Great little timers Relatively easy to install, but you have to be wired to modern electrical code (grounded, source, load, return wires). I installed 6 of these. Easy to program and set for dusk/dawn, etc. You'll have to read the instructions because it is two phase (set dusk and dawn, then set the programs). 5 of the 6 worked perfectly out of the box. The last took several seconds to turn on, and would flicker the light on and off intermittently for about a week, works perfectly now. One of the others gets stuck on the faceplate so it is tricky to press on/off to override. If you have multiple outdoor lights on a single switch, even if they are LED, you will save money and not even have to think about turning on/off the lights. I used to have to leave the lights on all day so they'd be on when I got home. No more.
Date published: 2016-07-26
Rated 1 out of 5 by from Junk if the power goes out I have two of these switches, and they both loose their memory when the power goes out. I have had the switches for a little over a year, and need to replace them both.
Date published: 2016-07-25
Rated 5 out of 5 by from Automated light switch We already own one of these for our front porch light and liked it so much we decided to add it to the side porch and back yard. It's easy to install, easy to program, and even when you lose power, it does not lose it's programming. It has many options for timer - on at dusk, dawn, or any time you set. It can set all the days the same, or set your preference. It also has a random feature so the light does not turn off at the exact same time every day, but within a 30 minute window. Being so small, it's a little hard to see the buttons, but once set, you can forget. Absolutely recommend this brand for quality, style, price and convenience.
Date published: 2016-09-27
Rated 5 out of 5 by from Perfect for a situation where a photocell is not an option. Make sure there is a neutral (white) ... Perfect for a situation where a photocell is not an option. Make sure there is a neutral (white) wire available before you order. Programming instructions are written in microscopic font so I had to dig up some reading glasses but once you set the dusk to dawn program you never have to touch it again. (There are other program selections available but that's the one I used). It has perfectly tracked sunrise and sunset as the days get shorter over the past month. This is not a "smart home" switch like WEMO or Hue so you can't control it from your phone - but it is much less expensive than the smart switches, and it can't be hacked.
Date published: 2016-10-25
Rated 1 out of 5 by from TERRIBLE instructions Not only is programming this device incredibly NOT USER FRIENDLY.. but they have provided you with directions that are ridiculously hard to follow and also incomplete!! Really GE??
Date published: 2016-09-25
Rated 5 out of 5 by from Picked up in store with free shipping. Well packaged. What's not to like about a timer that fit... Picked up in store with free shipping. Well packaged. What's not to like about a timer that fits where your light switch was, (either 1 or 3-way), can set to custom times per day, 7 days a week, or can turn on and off with the sunrise and sunset. It even auto adjusts for daylight savings time. It's backlit and has battery back-up in case your power goes out. After reading the instructions it was easy to program. Installation instructions were also easy to follow. I've only had it about a week but it's working perfectly to control my front porch lights, (and a second one for my deck light). It's a GE product and was the least expensive of any, with the most features. It helps to have a multi-meter to determine line (black) vs load (blue).
Date published: 2017-01-18
Rated 5 out of 5 by from Works like a charm! This is an excellent product because it works just like it is described. It is all electronic, no little pins and no little clips to push or pull, or loose! An amazing thing is it knows the dusk and dawn times! You don't need to use the dusk and dawn times if you rather set the on and off to exact times. It also claims to remember your setting should the power fail, that's a big bonus; we have not lost power since I installed it so we will see how that works later. I definitely recommend this product.
Date published: 2016-09-14
Rated 5 out of 5 by from Very SMART purchase!!! I purchased 3 of these. Two of them I use to power on and off my external wall outlets for holiday lighting. The third is used for my front porch lighting. During the holidays I will set the external outlet timers to turn on at dusk and shut off at midnight. During this same time, I set my front porch light timer to turn on at midnight and shut off at dawn. There are a number of ways to program these to fit your needs. Instructions are very easy to read and follow. I am a DIYer and electrical is not my strong suit. If I figured it out, anyone can. You simply can't beat the price when compared to similar timer switches.
Date published: 2016-01-06
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