Model # EI500WC

Internet #203954896

Intermatic 15-Amp Decorator Auto-off In-Wall Digital Timer
0078275105218

Intermatic

15-Amp Decorator Auto-off In-Wall Digital Timer

  • Compatible with incandescent, fluorescent, CFL and LED lights
  • Built-in rechargeable NiMH battery backup
  • Random setting uses slightly different times each day
$21.24 /each

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Product Overview

This compact 7-day digital in-wall time switch by Intermatic provides up to 14 on/off operations per week. It can be used for 24-hour or 7-day load control of lights, fans, pumps and other medium-duty loads. The display continuously shows time of day, day of the week, timer load and load status.

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Customer Questions & Answers

10 Questions17 Answers

Customer Questions & Answers

15-Amp Decorator Auto-off In-Wall Digital Timer
15-Amp Decorator Auto-off In-Wall Digital Timer

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Answers (3)

Asked by
Liberty KY
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August 9, 2016
Answer: 
Barry,
This timer uses solid state switching as opposed to a mechanical switch or relay. Solid state switching, typically uses MOSFETs to activate a circuit may have a very small trickle or residual charge present (when not activated). It is very small. In most cases most loads eliminate (or drain) this incredibly small charge. In the case of LEDs, they are extremely sensitive and use very low power.
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Barry,
This timer uses solid state switching as opposed to a mechanical switch or relay. Solid state switching, typically uses MOSFETs to activate a circuit may have a very small trickle or residual charge present (when not activated). It is very small. In most cases most loads eliminate (or drain) this incredibly small charge. In the case of LEDs, they are extremely sensitive and use very low power. It is possible for them to detect and illuminate from this very small charge. You can eliminate this phenomena by placing a resistor load (100K Ohm, 1/4 watt) across its output. That should be sufficient to kill off that charge.
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November 2, 2015
Answer: 
Many older timer designs use electronic methods to switch the lamps ON and OFF and also take their operating power from the connected bulb; this small amount of power is not enough to light a traditional incandescent bulb but can cause the symptom you describe when used with "energy saver" bulbs that have electronics built into the lamp base.
The EI500 does not have these limitations and can be used for Read More
Many older timer designs use electronic methods to switch the lamps ON and OFF and also take their operating power from the connected bulb; this small amount of power is not enough to light a traditional incandescent bulb but can cause the symptom you describe when used with "energy saver" bulbs that have electronics built into the lamp base.
The EI500 does not have these limitations and can be used for any type of bulb. Read Less
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November 2, 2015
Answer: 
It's a simple solution: you have the wrong kind of switch; you'll need one that specifically mentions it's suitable for LEDs, otherwise there will always be a slight power 'leak' and they'll remain lit as you've described.
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2 answers

I need to program

This question is from 15-Amp Decorator Auto-off In-Wall Digital Timer
Asked by
ocoee,fl
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May 14, 2016
I lost the instructed to program the timer and days so I need some information to do again
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Asked by
Liberty KY
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August 9, 2016
Answer: 
John,
You can search the internet and download a user's manual. I've done this myself. It will provide helpful guidance in the timer's use and explain how to program it.
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May 24, 2016
Answer: 
Please contact Intermatic Technical Support at 1-815-675-7000 or download the product instructions here:
http://www.intermatic.com/~/media/intermatic/documentation/timers/in-wall/electronic/ei500_series/ei500_instructions.pdf
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If I have a power outage will the unit have to be reprogrammed?

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October 25, 2015
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Asked by
Liberty KY
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August 9, 2016
Answer: 
This switch has in internal battery that maintains the current clock settings and user programmed events.
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October 26, 2015
Answer: 
The timer has built-in rechargeable battery backup and will not lose any settings or the time/date during a power outage.
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I have two black wires coming out of receptacle to hook up. Do I need all 4 wires on this timer to hook up or can I just hook up to the two black?

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WESTLAKE VILLAGE, CA
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March 4, 2015
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Asked by
VA
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April 21, 2015
Answer: 
read the directions, repeatedly if necessary to understand the full meaning. One of those black wires may be the line (hot side) so determining which one is critical - also is info contained in the directions
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March 5, 2015
Answer: 
Connect the black wire on the timer to one of the black wires that was previously connected to the old switch. Connect the blue wire to the remaining wire that was previously connected to the old switch. Cover the red wire with a wire nut. If there are any bare copper (uninsulated) ground wires in the electrical box, the green wire should be connected to them, otherwise cover the green wire with a wire Read More
Connect the black wire on the timer to one of the black wires that was previously connected to the old switch. Connect the blue wire to the remaining wire that was previously connected to the old switch. Cover the red wire with a wire nut. If there are any bare copper (uninsulated) ground wires in the electrical box, the green wire should be connected to them, otherwise cover the green wire with a wire nut.
Thank you for using Intermatic products, if you need further assistance, please contact technical support at 815-675-2321 Read Less
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Customer Reviews

Rated 3.8 out of 5 by 18 reviewers.
Rated 4.0 out of 5.0 by Functional product with fair price Easy to install. Works well. However the screen is tiny and dark. Difficult to read the screen during set up. I had to use a magnifying glass with flash light to set the program. When set, it works very well. September 20, 2016
Rated 2.0 out of 5.0 by Turns lights on/off I tried to purchase a better Intermatic timer from HD but when I was ready to put in cart it showed out of stock. I choose this model as a distant 2nd. It works fine but is made in China and the lack of quality shows. HD was nice enough to send me an e-mail stating, "Did you forget something?" with a listing and pic of the timer I wanted. Thanks HD, maybe you should check stock before poking your customer in the eye!!! July 5, 2016
Rated 5.0 out of 5.0 by Perfect solution for my radon project I use this timer to remove condensate from my radon system. Once a day, it activates a seqeunce which removes condensate water. I like this timer because it has a battery backup. This product was chosen because of its small size and great value over other timers costing 10 x $. July 26, 2016
Rated 4.0 out of 5.0 by Might be a good product For some reason, when used with my electric system, this device causes the light it controls to blink on and off. The first device I got, I called the manufacturer; and they said they had never heard of anyone having this problem, and the device was probably defective and I should return it to H.D.. I did, and ordered another one, which also had caused the light it controls to blink on and off. I concluded it must be a problem with my system, not the device. I replaced it with a simple toggle on/off, and all works perfectly. I might try replacing it with a device which does not require a neutral. I did connect neutral as instructed for this device. Have others had this same problem?????? October 8, 2015
Rated 1.0 out of 5.0 by Blowing through bulbs every 3 weeks I installed this switch in late Sept 2015 for an exterior pendant light I purchased the same time at HD.Now ( Nov 21 2015) I have my 3rd bulb in it. I have a lamppost out front that has a different light but the same bulb and it last 6 + months in that lamppost. The pendant light is on from 6 PM to 5 AM. The lamppost is on from dusk to dawn. I will probably remove both the light and switch and return. November 21, 2015
Rated 5.0 out of 5.0 by Great product The timer was easy to install, and very easy to set up. December 9, 2015
Rated 1.0 out of 5.0 by This was wrong from the jump Either this was "infant mortaility syndrome of the electronic type" - not being crass, this is a legitimate colloquial term - or I have suddenly gone inexperienced with installing Intermatic timers....I am an amateur but have successfully installed just under 15 of the programmable type in single circuit and 3 way circuits, so when I followed this one to the letter I was stumped and even called the service line for the company. Reported my difficulties after about 4 re-installs and the chap said send it back....Luckily the shipping was prepaid.... If HD wants to put on a seminar on installing these I will come partake and jump up and shout AHA if I learn something that I was/am missing. To those of you DIY who have installed these and they work, my bow. Frustrated in Virginia April 21, 2015
Rated 5.0 out of 5.0 by Auto Timer Review I installed the two timers in about twenty minutes. Instructions were clear. They are only in operation for a few days but so far so good. July 28, 2015
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