Question about Intermatic T10404R - Two 220 time clocks in raintight box

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Have a intermatic t104042 dual timer, it was wired for 240v and ran a pump and lights, now wired for 120v per intermatic's manual....now clock won't runn??? Any answers Gary

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I'm almost sure that all T104's have 230V timer motors. You can pop out one of the motors, and see what voltage it is. Or on the label it should say what the clock voltage is. The only way to make motors run would be to connect it to 220V which could still work if you used one leg for each of your 110V circuits. GOOD LUCK

Posted on Aug 10, 2010

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Good morning, problem began when timer stopped working at the pin "off" point. Figured a new timer was in order so replaced with a WG1573-5 (same as previous) Timer is T104. Now the problem, when the timer...


Did you buy new timer or new clock motor?
WG1573 is replacement 240v clock motor for T100 series timer.
T100 series is fully repairable and can be maintained to last decades. I've seen operable timer from 1950s.
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#T100

You can convert T104 240Volt timer into 120V timer by changing clock motor to WG1570 to replace WG1573.

In any case, timer is wired wrong somehow since it seems to cut off one leg of the 240V circuit.
Copy following links for illustrations and troubleshoot and more information than you can use in decades:
http://waterheatertimer.org/images/T-104-control-240V-Load4-35.jpg

More related information
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T104
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://waterheatertimer.org/Photos-of-WH40-timer.html#remove-dial

Don't grind up your motor.
Connect direct to hot wires and run 240V.

Add a comment
Gene
h

Aug 22, 2013 | Hardware & Accessories

1 Answer

Pool timer


You have the T103 timer rated 120-240. The clock motor part of timer is 120Volt. This is a very versatile timer, but confusing for non-electrician and electrician alike.
Solve problem by converting timer from T103 to the 240V T104 by changing clock motor from 120V WG1570 to 240V WG1573.
Buy wg1573 clock motor at WW Grainger or drillspot etc.
Resources:
http://waterheatertimer.org/How-to-replace-Intermatic-clock-motor.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T104
This simple fix is intentionally designed by Intermatic so their timers are not only adaptable to all electrical needs, but also can be maintained to last 25 years by replacing clock motors and trippers as needed

Jun 25, 2013 | Intermatic Hardware & Accessories

1 Answer

Intermatic T103P Timer (120V) Wiring Guidance


Copy following link for T103 timer wiring options:
The clock motor is 120Volts, but clock motor can be changed from WH1570 to WG1573, and this action changes 120V T103 into 208-277V T104 timer:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T103

Jun 08, 2012 | Intermatic Hardware & Accessories

1 Answer

Installing a outdoor timer t104m this is for the pool cleaner,need wireing instruction.next to pool pump timer.


Open following link for wiring diagrams and manual.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

240Volt T104 can be wired many different ways.
What is the significance of 'next to the pool pump timer?'
Are you getting power off the 240V pool pump timer to operate the new T104? This is perfectly fine. The pool pump wires would bring power from the breaker box.
Is the new T104 going to control 120Volt lights? The timer can do that, it just has to be wired correctly.
In any case, the T104 has 240Volt (or 277V) clock motor, and clock will not operate with 120V

If you add specific details, I can help with exact wiring diagram for your project.

Apr 18, 2011 | Intermatic Hardware & Accessories

1 Answer

How to wire a intermatic timer T104 240 v to a 120v?


T104 is 240volt timer.
Timer has terminals A 1 2 3 4
T-104 clock motor must receive 240Volts to operate.
Clock motor wires are white-colored and can be seen connected to terminals 1 and 3.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html
http://waterheatertimer.org/images/Back-of-WH40-2b.jpg

There are two work-arounds for using T104 for 120V.

1) Diagram 1 showing how to change wiring:
http://waterheatertimer.org/images/T-104-control-120V-Load-500.jpg
Move 240V clock motor wires to terminal 1 and A.
Connect 240V Hot leads to terminals 1 and A. This will power the 240V clock motor
Hot wire going to 120V load connects to terminal 2. This wire will be turned on each time timer turns on, and 120Volts will power the 120V load.
To complete 120V circuit, neutral wire that comes from neutral busbar in breaker box connects to 120V load.

To control additional 120Volt circuit, run jumper wire from terminal 1 to terminal 3.
Connect Hot to second load to terminal 4.

2) Second method is to change T104 timer into T103 timer:
http://waterheatertimer.org/images/T-104-control-120V-Load-2-5.jpg
Replace T104 240V clock with identical 120V clock motor from Grainger
http://www.grainger.com/Grainger/INTERMATIC-Time-Clock-Motor-1PNK1?Pid=search
Neutral wires connect to terminal A.
Hot wire from Breaker connects to terminal 1
Hot going to Load connects to terminal 2

To control additional 120Volt circuit, run jumper wire from terminal 1 to terminal 3.
Connect Hot to second load to terminal 4.

Dec 26, 2010 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

Dear sir I am trying to connect Model Et104, my questions are as follows: I am having a problem connectiing your system. Both power source 110v and 220 volts have to connect to your system???? If my...


Fixya answers questions about other people's products.

I specialize in timers.
Intermatic is changing their product line
I suggest you download the manual:
http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/et104c%20-%20english.ashx

The manual is generic across all the ET100 series products.
The manual does not describe individual models.
The instructions are on the timer door.
Look for the clock voltage.
The clock voltage tells the story of your timer model.

NOW lets say your clock voltage is 120V.
I believe you suspect the clock voltage is 120V.

To make this timer work with your 240V cable, there are 2 methods

Method 1) To meet code, run a white wire from nearby 120V receptacle.
This is a Neutral wire.
Connect the Neutral to terminal 1
Connect one leg from the 240V cable (1 of the 240V wires) to terminal 2 and that will complete the 120V circuit and the clock will run.
This is true because each leg of a 240V circuit is actually 120V, and only when the two legs are combined do they produce the 240V circuit

Method 2) Connect bare ground wire to terminal 1 and to grounding screw
The bare wire connects to the Neutral busbar in the main breaker box, so it will complete the 120V circuit just as described above.
This is not code, but your clock will operate.
Then connect one leg from the 240V cable to the terminal 2

IF your clock is 240 V, then connect both legs of the 240V cable to terminals 1 and 2

7:59 CST Add a comment if you need more assistance, I will be here later this evening

Nov 06, 2010 | Intermatic INC ET104C 24 HOUR ELECTRONIC...

1 Answer

How do I wire an intermatic t-103 timer switch


The T-103 has a 120Volt clock motor

From there, the wiring can go two directions depending on your Load voltage (load is the fan, light or motor that timer turns on-off)

Here is a link that shows exact wiring:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T103

When wiring the T-103, steps 1-2-3 are true for 120V or 240V installation:
1) A white Neutral wire is always connected to terminal A (Neutral wire connects to Neutral busbar in breaker box)
2) A black Hot wire is always connected to terminal 1 >> this hot wire can come from 120V or 240V breaker
3) Black wire going to Load (fan, light, motor) is always connected to terminal 2
The following step is true for 120V Load
4) if Load is 120V, then white wire from Load connects to terminal A
The following steps are true for 240V Load
5) Only the neutral wire connects to terminal A as described in (1
6) The second Black hot from breaker box (240V has 2 hot wires) connects to terminal 3
7) The second White going to Load connects to terminal 4

Here are 2 more links that show how 120V and 240V circuits are wired
http://waterheatertimer.org/See-inside-main-breaker-box.html
http://waterheatertimer.org/B220C.html

Oct 21, 2010 | Intermatic T103 Indoor 120-Volt 40-amp...

1 Answer

How do you wire a intermatic t103


I'm looking at the T-103 sitting here in my office.
Terminals are labeled: A 1 2 3 4
I have about 10 different Intermatic timers on the shelves & each is a bit different

The T103 has a 120Volt (or 110V) clock motor
You need a white Neutral wire to operate the T103 clock

120V: Let's say your Load (light, fan, pump) is 120V
The white Neutral from breaker box connects to Terminal A
The 120V black Hot wire from breaker box connects to Terminal 1
The black wire going to Load (fan, light, motor) connects to terminal 2
The white wire going to Load connects to terminal A along with the Neutral
Ground wires connects to green ground screw
If your wires from breaker and wires to load are wired in reverse, the timer will turn ON the Load but the timer will not shut the circuit OFF.
To test which wire is Hot and Neutral, look at explanation at bottom of page.

240V: Let's say your Load is 240 Volts (or 220 Volts)
The clock motor is still 120V so you still need a white Neutral wire connected on Terminal A
Now you have 2 Hot wires coming from breaker box
Hot wire 1 from breaker box connects to Terminal 1
Hot wire 2 from breaker box connects to Terminal 3
Wire 1 going to Load connects to Terminal 2
Wire 2 going to Load connects to Terminal 4
Ground wires connects to green ground screw

What if you don't have a Neutral wire and you are wiring a 240V circuit?
240V circuits normally have 2 hots and a ground, but no neutral
Buy the T-104 timer
The T-104 has a 240V clock motor
Wiring for the T-104 is exactly the same as 240V wiring shown above for T103 EXCEPT there is no Neutral on Terminal A, and Terminal A is bare
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

How to test which wire is Hot
Test requires wires with live electricity >>> this is not advisable without precaution
Stand on dry boards, do not touch anything metal, wear dry clothes, do not hold screwdriver in mouth, wear gloves, tape tester leads to wood sticks so hands are away from power
Remove wires from terminals
Separate wires so they can be tested
Turn on power
Test each wire to bare ground wire
Tester lights up on Hot wire(s)
If circuit is 120V, then there is only one Hot wire
If circuit is 240V, then 2 wires will test hot to ground >> these wires will be Hots 1 & 2
Test assumes circuit breaker is functioning normally.

How do you test for neutral?
If you have 120V line with only 1 hot wire, then one of the white wires will be Neutral?
Test Hot wire to each white wire
Tester lights up on neutral

Oct 17, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

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


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

Sep 16, 2010 | Intermatic Inc. EJ500C Digital Wall Switch...

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