Question about Intermatic Inc. EJ500C Digital Wall Switch Timer - Self-Adjusting Feature

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My intermatic model T104 was not activating. I bought a new one yesterday but sill not activating. Howcan I prove the unti when it has two white cable only. Please advise asap. Thanks

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1 Answer

T104 is 240V timer with 240V clock motor.
-This timer will not work for 120V circuits.
-Test your two wires for 240V.
-If your load (lights, motor etc) is 120V then you need the T101 timer.

Confusion about cables
When you say 2 white cables, does each cable have a black and white line?
If you have two cables with black and white lines, then one comes from breaker box, and the other goes to load ( water heater, motor, lights etc.)

How to wire T104 for 240V
How to wire T101 for 120V
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Posted on Sep 22, 2010

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How to wire model t10004 control panel intermatic inc? I am just looking for a picture of the wiring diagram. All I need to do is hook up a the wiring for the light.


T10004 control panel has 240V T104 timing mechanism.

1) You can use T104 timer to control 120volt light if you have a neutral wire:
http://waterheatertimer.org/images/T-104-control-120V-Load3-45.jpg

2) Lights are usually 120Volts with black hot wire and white neutral wire.
3) T104 timer is 240Volts with two hot wires L1 and L2 that can be white-black wires or red-black wires.

4) Open following link to see basic 120V and 240V circuits.
http://waterheatertimer.org/B220C.html

5) Open following link for T104 wiring options
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Jul 17, 2011 | Intermatic T10004R - Pool-Spa Mechanical...

1 Answer

Need wiring diagram for T104M 208-277v Mech. Time Time Switch


Here is the basic instructions:
http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/t104%20-%20english.ashx

Below is a larger and better diagram of a 240V connection Terminal connections are White to White on 3 & 4 Black to Black on 1 & 2:
http://waterheatertimer.org/images/T-104-control-240V-Load4-35.jpg

More info: http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

I am assuming you have the 240 VAC clock motor so the clock timer motor wires are connected to terminals 1 and 3.

If you only have the 120 VAC clock motor the wires will be connected across terminals 1 and 2.
Thanks for choosing FixYa,
Kelly

Jun 27, 2011 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

I had a T-104 timer installed on my water heater about 5 or 6 years ago. It is now starting to make a pulsing-type sound, but it does seem to be working okay otherwise. Is it something that could be...


The noise is from clock motor turning the gears.
When timer is new, parts have a bit of white grease on them.
Turn off power and spray WD 40 or apply some white grease.

The other possibility is that WG1573 240Volt clock motor is going bad.
Replace clock motor by tipping mechanism out using thumb spring located top inside box.
Buy clock motor and extra trippers from Granger:
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi

http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Notice on image below, there is a bit of white grease on lever.
This photo is from new T104.
geno_3245_290.jpg

Feb 22, 2011 | Intermatic T104-20 Indoor Hot Water Timer

1 Answer

I have intermatic t104 time 24 hour, the door hinges are broken can i get new door.


Page below shows Intermatic boxes, but doesn't describe which timer fits which box.
And the box costs as much or more than new timer.
http://www.electricsupplyonline.com/prod/intermatic-timer_accessories.php

Amazon sells T104 indoor
http://www.amazon.com/Intermatic-T104-208-277-Volt-Mechanical-Switch/dp/B000BQOX88/ref=pd_cp_hi_3_img
T104R raintight sold at Aplus
http://www.aplussupply.com/intermatic/timer.htm

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, fixya expert speaks with you over phone while you work on timer.

Jan 05, 2011 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

I have Intermatic timer WG 1573 208/277V 60Hz 3W stamped on the case. I would like to chage this unit to a 110V timer system if possible. (In other words just be able to switch clock motors) If this is...


WG1573 is a 240 Volt clock motor for T100 series timers.
This means you have T-104 timer.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html
Image shown on link above is T104R outdoor timer.
T104 indoor timer is the same except door does not have rubber gasket.
Terminals are labeled A 1 2 3 4
If this is not your timer, then add a comment.

Following instructions will convert T104 240V timer to T103 120V timer

Clock motor can be replace with identical 120V clock motor from Grainger
http://www.grainger.com/Grainger/INTERMATIC-Time-Clock-Motor-1PNK1?Pid=search

Timer mechanism snaps out and clock motor is located on back.
Remove clock motor with star screwdriver tip

Connect new clock motor wires to DIFFERENT terminals than before.
Old clock was connected to terminals 1 and 3
New 120V clock motor is connected to terminals A and 1

Wiring for 120V T103 is shown on link below.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T103
White neutral wire must connect to terminal A
Black hot wire must connect to terminal 1

Dec 19, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

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.


8d3440e.jpg

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

Timer does not activate setting wheel. Stays on or off all the time.


1) If wheel is not turning, then replace motor
http://www.aplussupply.com/intermatic/timermotors.htm
http://www.grainger.com/Grainger/wwg/search.shtml?searchQuery=Wh40&op=search&Ntt=Wh40&N=0&sst=subset
There are numbers printed on clock motor. Also look inside door to see model number of timer. If you have a T101 or T103, T104 the T100 motor will work.

2) If manual override is not working, then replace whole timer.

3) You can buy same timer, and then swap insides
without replacing box. For example if you have T101R, the R stands for rain-tight box. Buy T101 and swap insides. Keep in mind T103 and T104 and T101 are not interchangeable due to wiring differences.
http:waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Sep 15, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

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