Question about Intermatic Inc. ST01C Digital In-Wall Timer

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Installation of utilitech 7-day digital timer

Only two black wires coming out of junction box. Which timer wires do I hook to them?

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Open following link for clear description and illustration of Utilitec wiring.
http://waterheatertimer.org/Program-wire-Utilitec-0192773.html

Posted on Apr 26, 2011

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Related Questions:

1 Answer

Bought a Utilitech #0192773 to replace an older and non-working Intermatic SS7 series. The Intermatic had a black wire connected to hot, and a blue wire connected to neutral, and a red wire was capped off...


Utilitec 0192773 replaces single-pole switch and will not work for 3-way applications.

Open following link for clear wiring and programming steps for Utilitec 0192773
http://waterheatertimer.org/Program-wire-Utilitec-0192773.html

Utilitec can also be tricky to program if you are setting up astro dawn-dusk function.

For others finding this thread, same wiring applies to in-wall programmable timers by GE, Woods, Swilight, Sylvania, Tork, Hagar, UPM, Leviton, Grasslin, Wattstopper, Westek, and Intermatic analog timers. Intermatic battery-operated, Brinks and Aube timers are wired differently since they also work for 3-way applications.

Jun 05, 2011 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

I have tried to install the Utilitech timer but am having trouble. I have a ground, black, and red wire that were previously wired to a switch that controlled my outdoor garage lights. I tried to hook red...


Sounds like this was probably a three-way switch you are replacing as there is no neutral (white) wire in the box. If so, you can splice the white wire to the green wire in other three-way switch box; then hook the green wire in the box you are placing the timer to the white wire of the Utilitech timer.

Apr 17, 2011 | Intermatic & Self-Adjusting Wall Switch...

1 Answer

I have the Woods 59018 In-Wall 7-Day Digital Timer, and am having trouble installing it. I am replacing an IntermaticModel EJ251 timer that only connects using two black wires in the junction box (as...


Open following link to identify timer, read wiring instructions, and download on-line manual:
http://waterheatertimer.org/Woods-timers-and-manuals.html#59028

How to wire timer
1) Timer-green-wire connects to bare ground wire.
2) Switch has 2 wires. Take switch wires and connect to timer-black-wire and timer-red-wire. Choose either one for now.
3) In back of electric box are white wires twisted together and covered with wire nut. Connect timer-white to these wires.
4) If electric box does not have white wires described above, then connect timer-white to bare ground.
5) Turn on electricity, and push timer door which is also the ON-OFF button. If lights come on, timer is wired correctly. If lights do not come on, then reverse timer-red and timer-black wires.

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Mar 06, 2011 | Coleman Cable Woods 59018 InWall 7Day...

1 Answer

I have a utilitech 7 day in wall digital timer and would like to install it but have no clue how to. can you get me started


You want to install Utilitec in-wall 7-day timer that has 4 wires: red, white, black and green.

You are replacing a single pole switch that controls a light or several lights.
There is not a second switch that controls same lights.

The switch has 3 wires.
Generally there are two insulated wires and a bare ground wire.
Add a comment any time.

Here's what to do:
I have tested these timers for wiring and programming.
Get started and instructions will make sense as you go.
Turn off circuit beaker to switch.
Remove old switch.

1) Timer-green-wire connects to bare ground wire using one of the yellow wire nuts included with timer. Put two wires together so they are even at ends. Put wire nut over wire ends. Rotate wire nut clockwise between fingers until very tight.

2) Switch has 2 insulated wires. Take switch wires and connect them to timer-black-wire and timer-red-wire using two more yellow wire nuts. Choose either one for now. You may have to reverse these two wires in a minute.

3) In back of electric box are white wires twisted together and covered with wire nut. Remove the wire nut, but do not untwist the white wires. Connect timer-white to these wires. Then put original wire nut back over white wires.

4) If electric box does not have white wires described in step 3, then connect timer-white to bare ground, along with timer-green wire.

5) Turn on electricity, and push ON-OFF button. If lights come on, timer is wired correctly. If lights do not come on, then reverse timer-red and timer-black wires from step 2.

If you need help programming 7-day Utilitec timer. Pages have bigger print:
http://waterheatertimer.org/Program-wire-Utilitec-0192773.html
http://waterheatertimer.org/Program-wire-Utilitec-0141224.html

Dec 16, 2010 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

I bought Utilitech #0141224 7 day digital in wall timer. I have just 2 wires at the junction box both of which are painted over but assume one could be black and other white. The 7 day digital timer...


If your box contains 2 and only 2 wires, then the Utilitec timer will not work.
You need the Intermatic ST01C or EJ500 timers that operate with a battery.

I have tested the Intermatic and Utilitec timers:
http://waterheatertimer.org/Program-wire-Utilitec-0141224.html
http://waterheatertimer.org/ST01C-program.html#wire
Do not connect white and red wires together on any timer, but thank you for solving the problem why lights blink when connecting timers.

Now lets look at your wires.
Scrape paint off the wires so you can identify white and black.
According to your information, the black wire inside box will connect to timer-black wire.
The red wire always goes to Load (your light, fan, motor)
The white wire is necessary to complete a circuit so the clock inside timer will operate.
The timer has a clock just like your alarm clock, and it needs to connect back to neutral busbar in breaker box.
This is why the battery-operated timers will work with two wires, the clock runs on battery.
The Utilitec timer-white wire is the wire that goes to Neutral
The timer-white wire is supposed to connect to the other white wires that are twisted together and covered with a wire nut ... but some boxes do not have this neutral wire
To work-around, the timer-white wire can also connect to a bare ground wire.
The bare ground wire also connects to Neutral busbar in breaker box

If you do not have a neutral or ground wire as described above, then you need the battery-powered ST01C or EJ500 Intermatic timers.
See if you can pull some more of the wire into your box ... there might be a ground wire that was cut off and pulling more wire might reveal a ground wire. This will salvage the project.
Aplus is one of many places that sell the Intermatic timer
http://www.aplussupply.com/intermatic/timer.htm

For more about electric wiring:
http://waterheatertimer.org/See-inside-main-breaker-box.html
http://waterheatertimer.org/B220C.html

Oct 23, 2010 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

I am trying to install utilitech 7 day in-wall timer. Their are 3 switches in box controlling different fixtures. The old switch had black connected and a black looped to the next switch. How do I connect...


1) Wires in box:
Black looped to to next switch is Black hot wire
Other Black goes to fixture

2) Connect timer wires
Black timer wire goes to Black hot
Red (or Blue) timer wire goes to fixture
White wire connects to white neutral wires (usually connected together with wire nut and pushed to back of box)
Green goes to bare ground wire

Sep 04, 2010 | Intermatic Inc. ST01C Digital In-Wall...

2 Answers

I bought Utilitech #0141224 7 day digital in wall timer. I have just 2 wires at the junction box both of which are painted over but assume one could be black and other white. The 7 day digital timer...


Hello, I bought an in door smart digital timer (G.E.) or Jasco product for my front porch light. I hooked all the wires as instructed and programmed according to instructions. I have a two wire system, so i left the green wire unattached. The light comes on but flashes very fast. What's up with that? This is the second one i've replaced, the first one did the same thing!. Whats wrong?
Thanks,...
M Jones
Sacramento, CA.

Aug 16, 2010 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

I bought a Utilitech 7 day digital in wall timer, the wall switch only has a black (hot) and white (neutral) wire going to it. The new timer has black, white, red and green (ground). What do I connect the...


HI .. if the switch has only a black and white wire attached, and there are no other wires in the wall box, then you cannot use this timer switch. You need to return it and get a timer that does not use a neutral connection. The wires you have are a switch leg from the light and there is a white wire but it is not a neutral.
If there are other wires in that wall box , tell me and we can chat more about how to remedy this .

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May 25, 2010 | Hardware & Accessories

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