Question about Intermatic T103 Indoor 120-Volt 40-amp Timer Switch-Double Pole/Single Thro

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Clock doesn't work

Wired the timer by the wiring diagram and timer isn't moving.

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Open following link to identify timer and correct wiring:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Posted on May 19, 2012

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The wiring diagram for that timer is somewhat misleading. The 120 volt clock timer motor is connected internally to the "A" (neutral) terminal and the #3 terminal. The "A" (neutral) terminal is to the immediate left of the #1 terminal.
Here's how to do the wiring for your use, (assuming a 120 volt supply circuit and a 120 volt lighting or other load):
Connect the incoming power (line) black wire to terminal # 3. Connect the incoming (neutral) white wire to terminal "A".
Connect the outgoing (load) black wire to terminal # 4.
Connect the outgoing (neutral) white wire to terminal "A".

Posted on Mar 08, 2009

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Posted on Jan 02, 2017

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1 Answer

Wiring diagram for Intermatic AND WG1573-5


WG1573 is 240Volt clock motor.
The white wires on clock motor generally connect to terminals 1 and 3, but they can be moved to accommodate different wiring objectives, depending on the timer and voltage being used
Copy following links for troubleshoot, and to see correct wiring for T100 series timers
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html
Add a comment saying if this is a new timer, or older timer that stopped working recently. Describe the timer in detail, including how many screw terminals and where each wire is connected. Include voltage of pump, and describe the circuit breaker controlling circuit.

Gene

Jul 21, 2013 | Hardware & Accessories

1 Answer

Intermatic t101


99% chance the Timer wires are reversed ... and line from breaker and line to pump are reversed. Or remotely possibly the circuit is 240V, and somebody changed clock motor on old T101 from WG1570 to WG1573, converting old T101 into T102...
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101
Add a comment with what you discover

May 14, 2013 | Hardware & Accessories

1 Answer

Just intstalled a T104M according to the diagram and all the diagrams found on the web. The clock timer doesn't work. I can manually shut off the pump from the timer. I thought it was a bad tim


T104M is 208-277 timer mechanism that fits inside any Intermatic enclosure.
If voltage is not correct, then clock motor will not operate.
Since you did not say what voltage, I assume you have 240Volt pool pump.
Open following link to see the many ways to wire this timer:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html
It is possible that you have the Load and Line wires reversed.
Line wire come from circuit breaker, and Load wires go to pump.

If the T104M mechanism is part of a control panel with more than one timer, and/or a freeze control, then re-post question with more specific information.

Jun 23, 2012 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

I need installation or wiring diagram for Timer Intermatic T101


Copy following link for 120Volt T101 timer wiring options:
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101

Nov 29, 2011 | Home

3 Answers

So my intermetic time is broken, the gears dont turn, and the on/ off override isnt working. I need my pool heater, what do i do?


Sounds like you lost power to the timer. Look in your electric panel for a tripped breaker. Turn it OFF then back ON.

Aug 20, 2011 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

Manual switch works timer doesn't.


Timer that worked before and stopped working: could be clock motor or trippers
New timer installation: possibly the wiring from breaker box and wire to Load are reversed.

Open following links to troubleshoot Intermatic timer.
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

Jul 27, 2011 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

I changed the t8845pv timer and the clock dial does not move either. When I moved the dial manually the selenoide goes on and the system works but I can not make it work automatic. Any ideas?


Are you sure wiring is correct.
If Line wires from breaker box are reversed, the clock motor does not get power, so clock does not rotate.
Separate wires and turn power ON, and then test each wire to bare ground. Tester lights up on Hot wire.
Then test Hot wire to each other wire except bare ground wire, and tester lights up on Neutral.
On the wiring diagram, Hot wire is L1, and Neutral is N

Also check voltage of clock motor. If unit calls for 240V and your line wires are 120V, then clock does not rotate.

Intermatic site is down this weekend and I can't access manual to see exact wiring.

Add a comment with more details.
Intermatic site will be up again tomorrow and I will look at manual and post on this thread if needed.

Mar 06, 2011 | Intermatic T8845PV - Sprinkler-Irrigation...

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

Clock not working


the white wires that come from the clock need to be connected to both of the "line" terminals. If you have them connected to the "load" side, it will cut power to the clock once it turns off and it won't turn on again... hope this helps...

Jul 14, 2009 | Intermatic & Indoor/Outdoor Rain Tight...

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