Question about Intermatic Inc. ST01C Digital In-Wall Timer

1 Answer

Can't operate manually

"battery" flashing need to over ride and locate new battery

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  • Scott Jelt
    Scott Jelt May 11, 2010

    What model switch is it?


1 Answer

Open following link to identify timer and download manual with information on battery

Posted on Oct 04, 2011

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Irrigation timer

Which timer?
Have you reset the timer?
Is this new or used, or old, or worked before, is the timer battery-operated?
Have you changed battery?
Add a comment.

Copy following links to help identify timer.

Sep 08, 2012 | Hardware & Accessories

1 Answer

Anyone have a problem with replacement battery for SS8 intermatic timer

Copy following link for all Intermatic timers, including new Ej600, and older SS series timers.

Try resetting the timer. Hold down ON-OFF button and push and release reset button. Keep holding down ON-OFF until display starts flashing 12:00
Clean battery terminals.
My SS8 manual shows 1.5 volt alkaline battery but does not specify the shape or size of battery.
If the display is visible, then timer is getting power.
The low battery error might clear up after reset, but if it does not, then replace timer.
Intermatic has new EJ600 timer that has internal rechargeable battery, and does not need battery replacement. Or use ST01C or Ei600.
Remember also that timers cannot be exposed to extremes of hot or cold, or the battery can stop functioning.

May 01, 2012 | Intermatic Hardware & Accessories

1 Answer

The self=adjusting wall switch timer does not go on as set but it goes off at the set time, I put in a new battery at the end of May but sometimes the Batt is flashing. The battery sure can't be...

1) Timer is not 100% identified.
Sounds like Intermatic ST01C or Ei600
Sounds like timer needs to be reset after battery change, and then reprogrammed again.

3) Open following links to help identify timer and download manual:

4) If timer does not show on links above, add a comment with clear description of timer and buttons for possible identification and manual.

5) Most battery operated timers require 'reset' after battery change.
Manual usually says to replace battery and timer is ready to go again.
However, most timers lose functionality with battery change. That's why timer is reset, and then reprogrammed.

6) If functionality is not restored after battery change and reset, then timer has gone bad.

7) Intermatic timer has 1 year limited warranty, and there is not much that can be offered except buy next timer at local store. For example Utilitec 0192773 is actually Intermatic product. Sold at Lowes. If timer goes bad 2 years later, buy another one and return defect in new package.

8) Take a moment and rate answer:
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 04, 2011 | Hardware & Accessories

1 Answer

How do we clear out the timer settings

Timer is not identified.
Open following link to identify timer and download manual.

1) If you have zilla digital power strip, there is no reset button.
It appears you can reset timer by removing small battery located on back of timer.
Battery serves as a back-up for timer settings, and display will not show without battery.
Most battery-operated timers that do not have reset button are reset by removing battery.

Some battery operated timers retain programming forever even if battery is removed for months, and then programming is still there when new battery is installed. However this type of timer has a reset button, but zilla does not.

2) A second way to clear programming is to press PRG button to review each program, and set each program to another time. I don't know if this will work since you can't 'zero' out the settings.

Jul 30, 2011 | Coralife Power Center DayNight Timer or...

1 Answer

Need to know how to manual over ride intermatic lighting programable timer.

The Intermatic battery-operated timer series override button is either the on-off button or push in the door that acts like a switch and pushes on-off button.
The manual override reverses the programming, and then programming resumes at next set point.
So the override does not disengage timer programming.

Open following link for ST01C timer manual and ez programming.

Add a comment for more help.

Upvote the help.
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Jun 06, 2011 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

I am looking for a battery water timer that does not need pressure to operate. Just gravity. Any ideas?

Google search: 'battery operated timer' and 'battery operated hose end'

Smarthome shows the Orbit: and has manual:

The manual says 'turn down water pressure.' It looks to me like this timer opens and closes the valve with or without water pressure.
Sounds like it would be perfect timer for above ground cistern where gravity cause water to flow when valve is opened.

Amazon shows battery operated hose end, but doesn't show manual:
Hose end timers are not going to have a pressure gauge.

Apr 18, 2011 | GARDENA Water Timer

1 Answer

Even with new battery, on-off will not click

1) If timer worked before and stopped working, then manual says last step is to reset timer.
If timer will not function after reset, then timer is broken.

2) You posted under battery-operated ST01C timer, that comes with 1 year limited warranty.
Open following page to identify timer, read ez instructions, and download on-line manual

3) How to reset ST01C
Hold down on-off button and press reset button
Release reset button.
Keep holding down on-off button until INIT flashes on screen.
Release on-off and 12:00 will flash
Re-program timer using ez steps shown on link above.

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 13, 2011 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

On 10/12/10 electrician installed an Intermatic Inc. ST01C Self-Adjusting Wall Switch Timer in our garage to control outside lights over garage door. The lights were programmed to come on at 6pm and go off...

I believe your timer must be exposed to cold.
The CR2 battery in ST01C will only last 30 days when exposed to cold temperatures.
I was reading a pdf chart few months ago about timer batteries, and the power drop-off becomes really steep after 30 days.

Most digital programmable timers are susceptible to cold if they have battery or internal rechargeable battery that supports timer functions or acts as program back-up.
For example, I e-mailed Honeywell about their Aube rechargeable-battery-type-timer, and they said anything below 32F and the display becomes slow, and timer loses accuracy.

Your ST01C wiring is correct. I test timers. They don't operate if wiring is wrong.

I solved same problem with my back porch timer using GE 15070 mechanical dial timer. Home Depot sells in-store for $18.
Link below gives you photo, manual, and wiring instruction so you don't need electrician.
Open page and notice the timer below the 15070 has a photo insert showing on-off pins located on timer dial.
You move pins with ink pen or fingernail file.
Of course this is not self-adjusting digital timer, so I just set it for times I want, and it's easy to change times. It will be perfect for 6pm to 11pm daily.

And then use ST01C on a indoor switch.
You can wire the ST01C yourself by simply looking how each wire is connected now, or you can add a comment to this thread later and I will answer:

Add a comment for more free help.
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Jan 11, 2011 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

I need the instructions to program the EJ 5000C

EJ500 is battery operated timer.
Battery is located in pull-out tray behind flip-down door.
If display does not show, battery is dead, or timer has quit working.

Instruction manual:

Nov 18, 2010 | Intermatic Inc. EJ500C Digital Wall Switch...

1 Answer

Intermatic ST01C is a wall timer for my outside lights. The screen flashes "lobAt" and will not operate properly. I have replaced the batteries 3 times, and no result in stopping the signal. help please

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1) Manual shows troubleshooting steps. Since ST01C is battery operated, it will not work on loads farther than 100 feet away. If a wire is buried underground, this can interfere with operation. Other electrical devices can interfere with operation. Check for interference issues.

2) Try reprogramming timer
To program the ST01C:

3) ST01C has 1 year warranty + troubleshooting steps in manual, implying short life expectancy. Similar EJ500 has troubleshooting + 1 year warranty. Similar Intermatic EI600 battery-powered has troubleshooting + 5 year warranty. Each offers 40 programs per week.

3) Other in-wall programmable timers offer 7 on and 7 off events per week. Clock operates on 120V instead of battery. Ttroubleshooting is: reprogram.

Aug 28, 2010 | Intermatic Inc. ST01C Digital In-Wall...

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