Question about Intermatic Inc. ST01C Digital In-Wall Timer

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Can you please provide instructions for connecting Utilitech Self-Adjusting Wall Timer- #0192773. My electrical box has only 3 wires 2 black and 1 green ground.

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What you are describing is a wall electrical box for a "Wwitch Loop". What this means is that the power source (Hot and Neutral) go to the light first. What the electrician has done is run a wire from the light in which one wire is the hot leg from the source and the other one is the "switched leg" which runs back to the light as controled on-off power to it. The only legitimate way to use this timer would be to replace the wire from the wall switch to the light with a 3 conductor cable (3 current carrying wires and a bare ground or green wire). This would allow you to bring the hot and neutral along with the controlled "switched leg" as this time requires a constant source of power for the timer itself. Don't be tempted to let someone tell you to use the ground wire as a neutral. It is not safe to do that.

Posted on Sep 30, 2010

  • jkrill Oct 01, 2010

    I am not sure that I understand your procedure. It appears that I can not use the Intermatic wall timer unless I rewire wall switch. Do I need to replace the wall switch wire?

  • ajcaminitijr Oct 01, 2010

    That might be the case, There are quite a few perectly acceptable ways for lights to be connected to a switch, The way it seems yours was wired does not seem usable to this timer switch. The timer itself requires a complete power circuit to operate. Your wall switch sounds as it only contains a "loop", which means the power comes from the light box, goes down one wire and then when the switch is on, back up the other to turn on the light, Effectively they have only brought 1 half of the power circuit that the timer would need to operate, as it reuires the Neutral too. This may sound complicated, but is not really. Unfortunaelty I can't draw you a picture that might clear it up for you. Bottom line is, if you have accurately described the total number of wires in your switch box, you can't use THIS timer without rewiring the light,

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Installed Utilitech 192773. The lights works, the backlight display comes on light blue but there is not numbers on the digital digital display


Reset timer, and see if that fixes problem
Use toothpick or paper clip to press reset button, or refer to instruction sheet, or copy following link.
http://waterheatertimer.org/Program-wire-Utilitec-0192773.html

I have tested this utilitec timer, and using reset button will repair most problems.
If not, then Timer has 1 year warranty against defect, but it is easier to buy new timer at Lowes, and return defective timer in new package and report timer as defective.

Jul 29, 2012 | Hardware & Accessories

1 Answer

Im trying to install a Utilitech 0192773 self adjusting wall timer. It has four wires, black(hot), red(hot), white(neutral) and green(ground). I have a standard three light switch plate(outside light,entry...


Thank you for clear description of wiring, switches, and for including timer model number.

1) Open following link for ez programming and wiring for Utilitec.
http://waterheatertimer.org/Program-wire-Utilitec-0192773.html

2) Your single-pole switch has 2 wires.
0192773 replaces single-pole switch only.
Black wire that connects each of the switches is Hot wire: connect this wire to timer Black wire.
Other black wire that connects to switch goes to load: connect this wire to timer red wire.
Timer white wire connects to white wires that are covered with wire nut.
Timer green connects to bare ground wire.

3) How to connect stranded wire and solid wire
http://waterheatertimer.org/How-to-twist-electric-wire.html#stranded

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And 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.

Sep 03, 2011 | Intermatic & Self-Adjusting Wall Switch...

1 Answer

I bought a Utilitech Self Adjusting In-Wall Timer #0192773. The Timer has 4 wires....a black wire...a red wire...a green wire...and a white wire. The switch that I am replacing has 2 black wires and a bare...


The reason there is 2 black in the wall is because a standard line breaking switch was used. Meaning the hot side of the light was the black wire once broken light goes off. You would hook the black from switch to black in wall and white from switch to other black in wall green is ground and red put wire nut on. Red is for a 2 switch system. Where one of two switches in same room controls same light. Its not needed. Take caution when doing this trun light on goto breaker box and flip breakers till you find the right one that powers that light. once lights off then do your thing replacing.

May 06, 2011 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

Purchased utilitech 0192773 self adjusting wall timer. planning on installing in garage wall switch box for outside lamp posts, 3 total. the wiring in switch box consists of grounds tied together, 2 whites...


you got the wires you need. add switch's white to the white bundle in the back; green to grounds, red to the black going to the light; black to the other black. worked for me!

Jan 29, 2011 | Computers & Internet

1 Answer

I, too, only have 2 wires in my switch. It is not clear what to do with the 4 wires on the utilitech 0192773. Did not see the answer to the same question.


I wrote a page on the Utilitec 0192773
It shows how to wire the timer and shows the manual larger.
http://waterheatertimer.org/Program-wire-Utilitec-0192773.html

Timer-green wire connects to bare ground wire.
Here's what to do Switch has 2 wires.
1) Take switch wires and connect them to timer-black-wire and timer-red-wire. Choose either one for now.
2) In back of electric box are white wires twisted together and covered with wire nut. These are the neutral wires. Connect timer-white to these wires.
3) If electric box does not have white neutral wires described above, then connect timer-white to bare ground.
4) 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.

Nov 14, 2010 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

Utilitech Self-Adjusting Wall Timer- #0192773. Unable to program timer. The instructions are so small it is hard to read them


Utilitec 0192773 is also listed as LW60419
1) Has optional daylight savings plus dawn to dusk programming
2) Electrical wiring must be connected in order to program timer. This is because timer is powered by electric circuit (instead of battery).
3) Program choices:
-Individual days MO TU WE etc
-All 7 days of week
-Weekdays
-Weekends


4) Large manual + wiring tips:images load slow with dial-up
http://waterheatertimer.org/Program-wire-Utilitec-0192773.html


5) Enlarged manual
-Click on image to enlarge
-For more size, hold down Ctrl key on keyboard and use scroll-wheel on mouse

Sep 30, 2010 | Intermatic Inc. ST01C Digital In-Wall...

2 Answers

Utilitech Wall Timer #0192773 does not switch landscape lights on? Replaced Intermatic that had 3 wires. Black to Black, blue to black and red was capped. Utilitech came with 4 wires - black, white,...


Old timer: Intermatic EJ500 & ST01C timers have a battery. Battery operates the clock motor. Red wire is for 3-way circuit [a hallway with 2 switches is a 3-way circuit].

Utilitec timer, clock runs on 120Volt circuit instead of battery. So clock has to have power.

How to connect wires:
Black timer wire connects to hot wire from breaker box.
Red (or blue) timer wire goes to landscape lights.
White timer wire connects to white neutral wire [or if no neutral is available, connect to bare ground wire].
Green timer wire goes to bare ground wire.

How to find black hot wire and white neutral wire inside box
: Disconnect and separate wires so you can test. Use ordinary tester. Power is on. There is only 1 black hot wire inside each electrical box. Test each black wire to bare ground until tester light comes on > that identifies the black hot wire. Next, test black hot wire to white wires until tester light comes on > that is the neutral wire. Exception: This test does not necessarily work with 3-way switches since they reverse each time switch is thrown.

Sep 14, 2010 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

Trying to replace Intermatic with Utilitech inwall timers. Have 2 black wires in wall box with other switches for other lights. Which of the Utilitech 4 wires- black, red, white & green get conected to...


The wires on your new switch are intended for black = power .. white = neutral . and red = lights .. with two black wires on the old switch I am assuming that there is a bundle of white wires in that wall box, the white timer needs to join that bundle ... then you need to determine which black wire is the power from the electrical panel ( voltage tester) and connect to the black timer wire .. the red timer wire connects to the other black wire in the wall..

Please Vote !!

Apr 08, 2010 | Intermatic Inc. EJ500C Digital Wall Switch...

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