Question about Intermatic T101 - 24 Hr. Dial Time Switch - NEMA 1 Indoor Steel Case - Gray

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I need programming instructions to set time - Intermatic T101 - 24 Hr. Dial Time Switch - NEMA 1 Indoor Steel Case - Gray

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You posted under the T-101 120V Intermatic timer
The link below shows wiring for the T-101, T103, T-104
And it has links to wiring for many other popular timers.

To set the T-100 series timers, lift and rotate dial until current time lines up with silver pointer.
Put the silver ON trippers on the dial at the time you want timer to turn ON
Put the brass OFF trippers when you want timer to turn OFF

If you do not have the timer described above, I specialize in timers and electrical devices.
Add a comment with your model number and I will respond.

You can also add a comment below, and include a photo of your timer so I can identify and help.
Here's how to add a photo to your fixya question:

Posted on Nov 05, 2010


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a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017


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Vigoro 196-036 water timer manual -- need instructions on how to set timer for the Vigoor 196-036

Here is theinstruction:1. Install the battery2.Use left attor to decrease and right arrow to increase numbers < > to set current time to nearest hour at the time, noting AM and PM3. Repeat above instructions to set "start time: to desired time for day to begin watering4. Use left and right arro <> buttons to set "how often" (watering frequency) to select an hour/day increment (8 hours=3 times per day, 2 days=every other day).5. Use left and right buttons < > to set "how long" (watering duration) to select a min. or hr increment.6Activate the watering program by pressing the Program on/off buttin: a horizontal bar will be displayed to signify the program is on. Press the program on/off again to disable the programTo avoid accidentally changing the current program, the arrow button will be "locked out" or inaccessible if "program on" is selected.To create a new program, press Program on/off if necessary to disable current program.

Jun 12, 2011 | Hardware & Accessories

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Hi I sent this enquiry to small appliances in error so am resending here. Thanks and await your reply. Hello, I'm house sitting for a friend and I accidentaly disconnected their Lightning model No...

I'll take a shot at it, although I can't find a manual.
There are 5 buttons that you can push:
Reset, Set, +, -, Enter.
Inserting a pin in the Reset hole will erase everything.
You probably press Enter to cycle through Program 1, 2, 3, 4, 5, 6, Auto, Manual. Then use +, - to set the function, such as On time or Off time.
Then use Set to program.
In other words, to set the lamp to go on at 6pm and shut off at 11pm:
Press Enter until you see Program 1 flashing or highlighted in some fashion.
Use + or - to set the On time, press Set.
Use + or - to set the Off time, press Set.

Try this and get back to us.

Dec 21, 2010 | Hardware & Accessories

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How do I program the timer to turn on and off at specified times?

You need to program the timer so it turns on-off at specified times.

But first we need to identify your timer for sure.
Have a look at link below.
If your timer does not show, then add a comment with description of timer.
I have extensive files on timers.

Intermatic DT300, GE 15091, and Woods 59203 are the same timer.

Here are instructions for Woods 59203:
Plug timer in until battery is recharged.
If display will not show, then timer battery needs to be plugged into outlet for 1 hour until internal battery is recharged, or timer is bad, or electric circuit is tripped off, or electric circuit heeds to be tested with circuit analyzer.

Once display shows, then unplug timer for programming.
Set current time:
Press and hold CLOCK button.
Press HOUR and MINUTE to set correct time with am and pm.
Press Day button to set current day.
Release clock button.

Program timer:
Press PROGRAM button until "1 ON" displays. This is program1 ON.
Press MINUTE and HOUR buttons to set ON time for program1
Press DAY button to choose day or group of days for program1 ON

Press PROGRAM button until "1 OFF" displays. This is program1 OFF
Press MINUTE and HOUR buttons to set OFF time for program1
Press DAY button to choose day or group of days for program1 OFF

Press PROGRAM button until "2 ON" displays. This is program2 ON.
Repeat steps above to set ON and OFF time for 5 programs.

When programming is completed, press CLOCK button to exit programming.
Press ON/AUTO/OFF button until Auto displays.

Make sure lamp is turned on.
Make sure bulb is good.

If instructions don't fit your timer, then add a comment with model number or full description and I'll post those instructions.
Also you can take advantage of Fixya phone service where expert speaks with you over the phone for a price.

Dec 21, 2010 | RTO Intermatic DT300CL 8.3 Amp Seven Day...

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I need to find instructions on how to reprogram an Intermatic indoor wall timer.

You posted under ST01C Intermatic battery operated timer.
If you have different timer, then add a comment.

Let's review ST01C timer for a moment.
Programming will stay inside timer memory indefinitely until timer no longer works.
Even if battery is removed, programs remain. Current time setting does not remain in memory.
If battery goes dead, then current time will disappear, but programs remain forever.

If previous programming was correct, you might only need to set current time,.
In that case, you do not want to 'reset' timer and clear memory.

If you want to clear old programming entirely, then you can 'reset' timer using following instructions.
Press and hold on-off button, and then use paper clip to push in reset button for 3 seconds.
Release reset button but keep holding on-off button until INIT displays momentarily.
Release on-off button.
If display does not show, then timer battery is bad, or timer is bad.

For instructions how to set current time, click link below.
In addition to current time, the link has ST01C manual and also has EZ to follow instructions and photos for setting on-off times (but not astro times)

Instructions are different for astro dawn to dusk.
Add a comment at any time if you need free help with specific steps in the manual.

If you do not want to read the manual or open a link and read the steps or add a comment for further free help, then you can pay a fixya expert for phone support and that person will walk you through the steps while on the phone.
Keep in mind that ST01C timer has 1 year limited warranty, and your timer might be broken.
In that case you should try the free steps first.

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

1 Answer

I have digital programmable timers (Model DT121 and Model DT11) that will accept programs, but won't turn the attached lamps on and off at the programed times. The batterys are new and I've had them...

DT121 Manual

All Intermatic manuals

Intermatic does not show DT11
Intermatic shows the DT121 is no longer available

If the display shows and you can set programs, then the battery is good.
Does the manual override work? This indicates whether the timer on-off switch operates.
If manual override does not work, then I discovered that timers are no longer any good

Set present time
Then set ON time for program 1
Set OFF time for program 1
Then set ON time for program 2
Set OFF time for program 2
Most timers will not function if there is a conflict in programming > for example Program 1 says ON at 6 and OFF at 7 and Program 2 says opposite or has overlapping times
When events are set, press SET once > this will put timer in RUN mode

If manual override works, and you set programming correctly, but timer does not carry out instructions, I guess the timer is no good.

Intermatic has 24 hour timers with 2 on-off per day
Intermatic has 7-day digital timers (all digital timers today are 7 day where you select the day that each program works)

Oct 12, 2010 | Intermatic Hardware & Accessories

2 Answers

Need instructions to program Intermatic Model #E140C wall switch timer.

Do you mean Intermatic E104C box-type timer? Intermatic does not make E140C

Manual says "refer to programming instructions on time switch door"

Manual says timer has 8 events per 24-hour day ... 4 'on' events and 4 'off' events. Normal operations, selectors are set to AUTO and RUN.

Using sketchy info from manual about programming:
Set sliders to MANUAL & TIME/SET
Press EVENT for event 1 ... set hour and minute using HOUR & MIN buttons ... this will be 'on' time
Press EVENT for event 2 ... set hour and minute ... this will be 'off' time
Set all 8 events ... 4 'on' and 4 'off'
Move sliders to AUTO & RUN for timer operation

Sep 15, 2010 | Hardware & Accessories

1 Answer

Programing of UTILITECH 0192773

All the information you need is in the instructions The problem is the instructions are printed so small and the way they are printed make them confusing. I will assume that you have the wiring correct. The timing goes like this: First press the time button The display will turn to the year. Press the + or - button to set the year press time. The display for the month begins flashing Press + or - to set the month. Press time , the day begins flashing Press + or - to set the day press time . The aera of the country flashes. Press + or - to correct aera press time. Programing: Press program This gets you in to the Sun up / sun set mode . You can change the times here by +or- . OR press program through this to program the daily time. Press program the display reads 12:00 not flashing.
Press + or - to set the day or days . The display is realy hard to see. You will need to look almost under the top baisel to read it . + or - throgh to the day or days you want . press time . The display starts to flash . Push + or - to the time you want to turn on. press program. You are now in the OFF mode for this event. Set the off mode as above and press program. Set as many of the 7 events as you need in the same maner. When you are finished press time for 2 to 3 sec. Be sure that the timer is in AUTO mode or nothing you have done will work.

May 19, 2010 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

Setting the delay on the oven

To correctly proceed you have to know the format the timer program is working in. SO you need to know
1Time format IE 12 hour AM - PM or 24 hr military time 2If a day, date is required M-Sun...or IE Sat 12th of March...(some times this is not a peramiter needed)

With the clock and calendar set the delay time should require a "timed mode setting" prior to being able to set the timer. Once in this mode you will have 1 of 3 ways to set the time delay depending on how the timer is set up to read your instructions. .
1 the actual time of day it is to start (set in actual clock time like the equalivant of 3:05 PM or if in military time, 24hr clock 15:05) or 2 the actual delay time until the program is set to start (again set in hours and minutes 2:10 = 2 hours and 10 minutes from now) 3 also is the stop time, when you want to program to end (also set in the format the timer is programed to recieve instructions)

Also the calendar could be waiting for input as to which day to start the program

Jun 12, 2009 | Kitchen Ranges

1 Answer

Can't find instructions

email me at for a copy of the instructions

Feb 10, 2009 | Solar Ingraham 20 Program Electronic Timer...

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