Question about Intermatic & Indoor/Outdoor Rain Tight Timer

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I have a rather old Intermatic Timer that I use to turn on/off a pole light in the front of our home. The Timer is located inside the garage and has run without a problem for many years. I'm sure the little motor is bad and it has the following information on the motor. 125 V W-160 60C 2.5w UL E-22587 Where can I purchase a replacement motor and the estimated cost? L.Morse

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There is a seller on ebay who has what you want for $22 (US) (Buy it now price).

Posted on Feb 24, 2009


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Intermatic timer model: E-1010

This heavy-duty 15 amp mechanical timer replaces single-pole switch.
Use for appliances, attic fan, 1 HP motors, lights, CLF, led ... any load.
Operates in freezing location such as garage... note; many electronic timers that cannot be exposed to freezing temperatures.
Requires neutral wire.
There are two models E1010 E1020.
The E1010 has non-replaceable, 2 On 2 OFF trippers.
E1020 version has replaceable trippers with 30 minute intervals.


Water Heater Timers Save Money

Mar 05, 2015 | Intermatic Hardware & Accessories

1 Answer

I have porch lights that are controlled by a switch in front entryway and also from garage. (3-way) I want to put a timer in entryway and by-pass the garage so lights come on from only one location.

Identify which of 2 switches has the Hot or Power wire.
Hot wire will be connected to dark screw on one of the switches.

If Hot wire is in garage box, then follow this Step 1-2-3 diagram for ST01C timer:

If Hot or power wire is in entryway box, then you have a '3-way no neutral,' so cap off 3 wires going to other switch. ..
And then wire ST01C timer as single pole no neutral.

Oct 23, 2012 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

I just purchased a home that has an Intermatic T103 installed in the garage, how can I figure out want it's connected too?

T-103 is 120Volt timer that can be used to control 120Volt and/or 240Volt loads, for example pools and spas and outdoor lights.
Look at the yellow dial and see if it has trippers attached to dial.
If no trippers are on the dial, then the timer function is off.
Next look at dial and see if it rotates as time passes.
If dial does not rotate, then either the clock motor is bad or electricity to timer is off or timer is not connected to power.
Test across terminals A and 1 for 120Volts will tell if timer is getting power.
Last, move manual override back and forth and see if anything turns on and off.
Open following links for more information:

Jun 12, 2011 | Intermatic T103 Indoor 120-Volt 40-amp...

1 Answer

I have an intematic wall timer in my gararge. I read in one of the posts that the reason the battery only lasts 30 days in in a cold gararge due to the cold. I have the same problem. Is there a solution...

1) I tested this timer and read pdf on battery specs:
20-30 days is battery life for CR2 ST01C battery

2) In addition, Fixya customers report needing to change battery frequently when timer is located in garage.
The same is true for Aube timers since timer display is dependent on rechargeable battery.
I have not tested every timer, but it seems in-wall timers that are used for 3-way switching have this problem.

3) If your garage timer is not 3-way, where more than 1 switch controls same light, then buy single pole timer and replace Intermatic.
For example GE 15086 & 15071, Woods 59018 & 59028, Tork SS720 (which is GE), Utilitec 014224

4) If you need astronomic dawn-dusk timer that is single-pole and not battery operated, then buy Utilitec 0192773 - LW60419 at Lowes.
Link below gives manual and wiring, both are tricky judging by number of fixya requests.

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

Jan 28, 2011 | Intermatic Inc. ST01C Digital In-Wall...

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You posted under Intermatic EI210 countdown timer.
To confirm this is your product, open link below:
Manual with operation instructions appear on link below

EI210 replaces single-pole switch only.
Single pole switch is where 1 switch controls the Load (light, fan, motor)

To wire this timer:
1) Single-pole switch has 2 insulated wires and 1 bare ground wire.
2) Connect insulated switch wires to timer red wire and timer black wire, in either order for now.
3) Connect timer green wire to bare ground wire.
4) In back of electric box are white wire that are twisted together and covered with wire nut. Connect timer white wire to these wires. This will power electronics located inside the timer.
5) If electric box does not have white wires described above, then connect timer white wire to bare ground wire along with green wire.
6) Turn power ON. Press oval button. If indicator light turns ON, then timer is wired correctly. If indicator light does not come on, then reverse timer black wire and timer red wire.

Add a comment if you need more free help.
Also take advantage of fixya phone service.
For a price, fixya expert gives you same instructions shown above via phone while you connect the device.

Dec 30, 2010 | Intermatic EI210 Electronic Auto Shutoff...

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THe clock has quit working can you purchase just the inside and not the box to save some money and then I don't have to pull it off the wall if you think that's the problem

You posted under T-104 Intermatic 240Volt timer.
Add a comment if you have different timer.

Before buying anything, click the manual override to see if Load turns on. If timer is not rotating and Load does not turn on, then check that you have electricity to timer. Clock won't work if timer has no electricity.

Here are some options:

1) Yes you can purchase the T-104 insides $88.

2) You can purchase whole timer and swap insides $70-$81.
If you have T-104R outdoor timer, you can swap insides using any T-104 timer
My local Lowes store has T104 on the shelf, but I don't remembet price.

3) You can buy the 240Volt clock motor and change it using a star screwdriver $16

Nov 26, 2010 | Intermatic T104R 208-277Volt 40-amp Timer...

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I have a intermatic ej351 in my garage to turn the outside coach lights on and off. I made the mistake of putting some 10 year bulbs in the coach lights and now the red light on the timer just flashes...

I answer questions for free.
I specialize in timers and electrical devices

Below is the manual for the EJ351
The red light is a good indicator of the EJ351 timer.
The manuals says that you can clear all programming by moving control lever to OFF-CLEAR position for 20 seconds.
After programs are cleared, the red light will turn off.
Then move control lever to ON position, and then red indicator light will start flashing.
So the problem may be that the timer programs were accidentally cleared.
Use the instruction manual to re-program your timer.
Add a comment if you need more assistance, and I will help.

Nov 02, 2010 | Intermatic Timer E1020, Single pole/single...

1 Answer

I am replacting my T104 timer with a GE 15601. The posts on the T104 are marked 1 2 3 4. However on the 15601 they are marked L 1 X 2. How do these map to each other?

GE 15601 is a replacement module for Intermatic timers.
Intermatic timers can snap inside the old box without needing to replace the box, and GE has made a product that taps into that market.

But the GE manual is missing key facts like clock voltage and wiring.

The following information is correct ONLY if the GE timer is rated for 240Volts Why? The T-104 is a 240V timer. I have 10 different Intermatic timers on my office shelves right now, and wrote the T-104 page linked to above.

Below is picture of the back of GE timer taken from GE manual.


Please look at the image as a reverse image of your wiring poles.
T104 has poles A 1 2 3 4
Black wire on Intermatic Pole 1 is the Hot from Breaker
Black wire on Intermatic Pole 2 is the Black to Load
White wires on Intermatic Poles 3 and 4 are the White from breaker and White to Load. So on the GE timer, 2 white wires are on same pole.

On the GE timer, there is a brass connector between 2 of the Poles that connects those poles electrically, so no wire goes on one of the GE Poles

That's the wiring changeover.
Up-vote if the information helped you.

Oct 13, 2010 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

Hello I have an older T103 Intermatic which controlls outside lights. It is no longer turning on lights and is making an unusual clicking noise. Can it be repaired or should I install a new...

You can replace the clock motor for $16 ...
... but if the mechanical timer mechanism is worn out, then that is not repairable. To check mechanism, lift timer dial and rotate tripper pins out of way, then click manual override on-and-off >> if override works fine, and lights come on then motor is probably the problem.

If you buy a new T103, the insides might snap right into old timer box without needing to replace the box. To remove insides, depress retainer spring located at top, tip out timer, and lift to remove. New timer has 4 tripper pins. Save old tripper pins, and tape them inside box.

Sep 09, 2010 | Intermatic T103 Indoor 120-Volt 40-amp...

1 Answer

What would make the lights controlled by the Intermatic Wall Switch timer flicker?

I believe that your house is 2 pole wired (old house?) and the timer is 2 pole. After some net searching (I bought one of these also and am having the same problem) you can't use it. You need one that will work with a 2 poled wiring system. If you find out differently, please let me know.

Oct 18, 2009 | Intermatic & Self-Adjusting Wall Switch...

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