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?

This question is from 3-Way Sunsmart In-Wall Digital Timer
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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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

Rated 3.9 out of 5 by 166 reviewers.
Rated 5.0 out of 5.0 by 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. October 25, 2016
Rated 5.0 out of 5.0 by 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. September 27, 2016
Rated 5.0 out of 5.0 by very nice product I purchased this G.E. timer switch to control 2 dual-brite lanterns at front entry because their photoelectric sensors had failed. I switched their little control switches to constant and now they are controlled by this timer.It's easy to install and It works great and also with the led bulbs I now use. Has been in for 3 months now. You program it to your time zone. I saw other makes on line that cost twice as much and thought that was too much for what I wanted. Then I saw this timer with good reviews and tried it. Glad I did. June 1, 2016
Rated 2.0 out of 5.0 by poor purchase I tried to program this and failed,three times. I had to hire someone to program it for $120.00. No deal. Plus I would like it to shut off before dawn. October 18, 2016
Rated 5.0 out of 5.0 by easy to install and program. October 25, 2016
Rated 1.0 out of 5.0 by Extremely difficult to program This unit appears to be mechanically well designed and seems to offer a lot of options for programming it to turn on and off a device at different times on different days of the week. The instructions for installation of the timer were accurate and easy to follow so there was no problem there. When I searched the various timers on Home Depots site it seemed this unit more than met my needs. I reviewed other buyers comments and noticed some folks gave it high marks but there were several comments submitted that the instructions for programming were too complex and confusing. I figured the complexity of the programming goes with the territory of a timer with multiple features and even though I don't think I am the smartest person in the world I should be able to figure this thing out. However I discovered the programming instructions for this time are in fact very difficult to implement. I never take the time to rate products I purchase from Home Depot (most everything I buy works fine) but in this case I felt I owe it to consumers out there to let them know of my frustrations. Programming the timer to do the most basic on and off functions that I wanted has so far been unsuccessful. I have read and re-read the instructions and attempted to program the unit at least five times now. I review the settings following the instructions provided to make sure the memory of the processor reflects the time, date, on/off settings I entered and it all looks good. I then wait and watch when the timer turns on and off my front porch light and every time the timer turns the light on or off at some hour totally different from what I thought I had programmed. Maybe the unit I bought is defective and that is the problem. I gave up after several days trying to get the thing to work so now my girl friend is trying. I hope she can figure it out but if not I will take it back to Home Depot and try another product. But I want to state to anyone considering this product that I would steer away from it and go with another manufacturer because even though this timer looks good and has lots of features, in my opinion the design of the unit is more complex than it needs to be for what I suspect most people want and need. That is a timer that turns a porch light on and off the same time of day each day of the week. October 18, 2016
Rated 5.0 out of 5.0 by Set it & forget it So nice not to have to remember to turn on or off the light. Setting the timer was easy. October 11, 2016
Rated 3.0 out of 5.0 by do not use with dimmer This product does not work with a dimmer on a 3-way circuit. The company says it does here but I spoke with someone from their customer service and he said it will not work. I spent hours trying to figure out what was wrong with the wiring (the lights would flicker) but it turns out the issue was using this with a dimmer. September 27, 2016
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