Question about Intermatic T104 24h 208-277v Mechanical Time Switch

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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?

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1 Answer

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.


I am replacting my T104 timer with a GE 15601. - 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.

Posted on Oct 13, 2010

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Wiring a 120 outdoor pool timer


Timer is not identified, voltage is unknown
Copy following links for possible identification of your timer, and wiring diagram:
http://waterheatertimer.org/Boxtype.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html
http://waterheatertimer.org/GE-timers-and-manuals.html#15306

Jul 04, 2012 | Hardware & Accessories

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I had an intermatic 220 timer that died. I am trying ti reconect my wires to a replacement timer from GE. The GE is the 208-277 VAC. On the intermatic there was two red wires connected to the second...


Necessary for you to match up terminal numbering with actual numbers for each timer.
Information below is for 240volt timer controlling one single 240Volt load.
GE15601 has terminals L 1 X 2 from left to right
Intermatic T104 Has terminals A 1 2 3 4 from left to right

Here's the crossover from 240Volt T104 Intermatic to 240Volt GE 15601 for single-240Volt-load
Intermatic terminal 1 connects to GE terminal L
Intermatic terminal 2 connects to GE terminal 2
Intermatic terminal 3 connects to GE terminal 1
Intermatic terminal 4 connects to GE terminal X
Intermatic terminal A is not used in typical 2-wire 240volt circuit.

More links:
http://waterheatertimer.org/GE-timers-and-manuals.html#15601
http://waterheatertimer.org/images/GE-15307-wiring-250.jpg
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html
http://waterheatertimer.org/images/T-104-control-240V-Load4-35.jpg

Jul 30, 2011 | RTO Intermatic T106M Timer Mechanism Only...

1 Answer

I need help to install pool pump to mechanical intermatic timer switch GE to replace the digital control.


Question is not clear.
Add a comment with missing information for exact wiring diagrams.
Voltage is not known.
Timer model numbers are not known.
You have two timers.
You are replacing unknown electronic timer with unknown mechanical timer.
Intermatic timers and GE timers are different companies, and each makes many different timers
Each box timer has identification on inside of timer door.
Open following links to help identify timer and see wiring diagrams.
http://waterheatertimer.org/Boxtype.html
http://waterheatertimer.org/GE-timers-and-manuals.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Jul 14, 2011 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

I am replacing an Intermatic T101 125v time switch dial with a GE 15600 replacement time switch module. The intermatic has posts A 1 2 3 4 and GE has L 1 X 2. How do these map to each other?


GE15600 replacement module snaps into standard Intermatic box.

Timers can be wired different ways. I know all these timers and have them sitting in my office.
I cannot see your timer or your wires, so read information below.
Open following link for clear crossover instructions:
http://waterheatertimer.org/GE-timers-and-manuals.html#GE-replacement

If Intermatic timer has terminals A 1 2 3 4, then that is not traditional T101, but sounds like 120Volt T103.
T103 can be wired many different ways, and is not fully compatible with GE replacement.
If you have wires on all terminals A 1 2 3 4, then add a comment and say what wires you have and what loads you are controlling, for more detailed information.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101

For other folks who find this link, it is sometimes less expensive to repair T100 series Intermatic timer with $4 trippers and $20 clock motor.
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html

Upvote the help.
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.

May 16, 2011 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

I noticed the Tork 1104 timer box was not working. It does not make a sound. And the clock does not move. I measured the incoming and outgoing wires with a multimeter and both measure at 240V. I'm...


13 years is good run for clock motor. Timer will last longer than clock motor.
Open following link to identify timer
http://waterheatertimer.org/Tork-timers-and-manuals.html#1101
Tork 1104 has 240Volt clock motor

Frontier lighting sells the >> 120V Tork motor: List price 40.33/ your price 45.49
So 120Volt replacement motor costs as much as new replacement timer
http://www.frontierlighting.com/product.jsp?part=10431&process=search&show=&&gdftrk=gdfV22514_a_7c834_a_7c3267_a_7c10431

Intermatic replacement is240 volt T104 timer for $49.62 with 'free' shipping:
Also Intermatic trippers and clock motors are cheap and easily available
http://www.amazon.com/Intermatic-T104-208-277-Volt-Mechanical-Switch/dp/B000BQOX88
Crossover wiring from 1104 to T104.
Tork L goes to Intermatic 1
Tork 1 goes to Intermatic 3
Tork x goes to Intermatic 2
Tork 2 goes to Intermatic 4
Intermatic A is not used unless you have neutral wire or 277V
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

GE sells the same 240Volt Tork timer under GE model 15307 in indoor-outdoor enclosure available at Home Depot for $59.00. Year 2011, GE does not pay US income tax, but takes US profits and pays tax in foreign nations. No replacement clock motor is available, but crossover wiring is same.
http://waterheatertimer.org/GE-timers-and-manuals.html#15306

Upvote the help.
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.

May 09, 2011 | TORK Variable Cycling Timer 8601

1 Answer

Hi! Please help me. I am having trouble connecting the wires from my dead 220v T104 pool pump timer to a new 220v T104 timer. The old timer had posts marked G 1 2 3 4. The new one has posts marked L 1 X...


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

Your new timer is L 1 X 2, so that is not Intermatic T104.
You might have GE/Tork 15061 that fits into Intermatic box.
http://waterheatertimer.org/GE-timers-and-manuals.html#GE-replacement
First thing to check is if new timer is 240Volts to match old T104.

If new timer is 240V, then here is crossover:
"Old 1" goes to new L >> and notice that L and 1 are connected by brass bridge. If bridge is missing, add a jumper wire between L and 1 on new timer

"Old 2" goes to new 2

"Old 3" goes to new X
"Old 4" goes to new X

T104 Intermatic timer is SPDT single pull double throw, so it turns off both wires going to Load.
New L1X2 timer is SPST single pull single throw, so it turns off one wire going to Load, and that's why old 3 and old 4 both connect to terminal X.

If this is too complex, then add a comment or buy new trippers and a new WG1573 clock motor and repair T104 for $20.
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#T100

Apr 22, 2011 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

I am replacting my T103 timer with a GE 15600. The posts on the T103 are marked 1 2 3 4. However on the 15600 they are marked L 1 X 2. How do these map to each other?


1) If you are replacing T103, the T103 can be wired many different ways. Not all wiring diagrams are supported by GE 15600 replacement timer that fits into Intermatic box.

2) Double check your T103 terminals
T103 terminals should be A 1 2 3 4
If terminals 3 and 4 have wires, then GE is not correct replacement.
You can buy repair parts for Intermatic timer
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T103

3) GE has terminals 1 and L which are connected by brass bridge. If brass bridge is removed, add a jumper wire and connect terminals 1 and L
GE has terminals 1-L X 2

4) Typical GE 15600 wiring shows on following link, in addition to links for parts and manual:
http://waterheatertimer.org/GE-timers-and-manuals.html#15306

White wires on terminal A connect to terminal X
Black wire on terminal 1 connects to terminal 1
Black wire on terminal 2 connects to terminal 2

5) 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 06, 2011 | Garden

1 Answer

Hi expert: I am installing intermatic P1353me digital pool or spa mechanism and having trouble to figure out how to do this heater Firemen Switch connection. My existing pool timer is T104 and there were...


1) Fireman's switch automatically turns off heater few minutes before turning off pump.
Not all pool timers have fireman's switch.
If old timer did not have it, then don't worry about it.
P1353 has wires marked for fireman's switch, so simply don't use them if you don't want to.
http://waterheatertimer.org/pdf/Intermatic-P1353-manual.pdf
page 21 of manual shows wiring for fireman's switch.

2) T104 and P1353 comparison
Difference 1: T104 turns OFF both hot wires, while P1353 turns Off 1 hot wire.
http://waterheatertimer.org/Compare-120-and-240.html
Difference 2: T104 controls 1 240V load with 1 time schedule, while P1353 controls 3 different 240V loads, each with different time schedule.
Check that wire(s) coming from breaker can handle all 3 loads.
http://waterheatertimer.org/Color-codewire.html

3) 240Volt T104 is wired as follows:
http://waterheatertimer.org/images/T-104-240-Volt-400.jpg
Hot1 from breaker connects to T104 terminal 1
Hot2 from breaker connects to T104 terminal 3
There is constant power on terminals 1 and 3, each terminal has 120V when combined makes the 240V circuit.
Load1 wire connects to T104 terminal 2
Load2 wire connects to T104 terminal 4
Terminals 2 and 4 have power whenever timer turns ON

4) Definition:
In electric wiring, Line means power from breaker, and Load means wire going to light,fan, motor, pump.

5) Converting T104 to P1353
http://waterheatertimer.org/images/P1353-timer-350.jpg
http://waterheatertimer.org/images/P1353-terminals-566.jpg
Hot1 from breaker connects to P1353 terminal 1
Hot2 from breaker connects to P1353 terminal 2
This will power timer electronics and timer clock and switches.

Jumper wire is placed from Hot1 at terminal 1 to each Line terminals 3 5 and 7.
This will put power at the switch, and when switch turns ON, then power will flow from Line wires to Load wires and then on to the Load.
Load 1 connects to terminal 4, Load 2 connects to terminal 6, Load 3 connects to terminal 8
To complete each 240V circuit, Hot2 is connected directly to each Load.

6) You say 'salt' system connects to terminals 1 and 3 on T104, then those wires are carrying constant 240V to that device. So Salt system connects to terminals 1 and 2 on P1353

7) Get a second opinion:
I frequently contact Intermatic for various problems.
P1353 is fairly new product, and manual is long, and I might not fully understand your problem or wiring.
Intermatic answers their email.
http://www.intermatic.com/customer%20service.aspx

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 Digital 3-Circuit Timer...

1 Answer

Door is broken


You posted under Intermatic T104 240Volt box-type timer.
If this is not your timer, then add a comment.

1) You can buy hinges at hardware and install with small bolts or sheet metal screws, or sand off the paint and use epoxy adhesive to glue hinges to box.
2) You can spot-weld hinges to the box.
3) I have only seen one supplier selling boxes, and that site didn't define what model fit what box, and the box cost as much as a new timer.
4) If your box rusted out, you might consider timer with plastic box. T104P, GE15087, Tork TU Universal
Intermatic T104P
http://waterheatertimer.org/How-to-wire-GE-15087-timer.html
http://waterheatertimer.org/Tork-timers-and-manuals.html#TU
If this is heavy industrial application where equipment might impact timer, then move timer or install steel protector over timer.

5) 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 10, 2011 | Intermatic T104-20 Indoor Hot Water Timer

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