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

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Clock number one won't work, number two works

I would like to check to see what the problem is on my intermatic T 2104R. Clock number one which switches the pool pump is not working while clock number two which powers the pool sweep is working. I can turn the switch on manually. I am not sure if one of the wires is loose. Appreciate any advise. I tried to look up the wiring diagram but couldn't find any and the one on the box is too faded and cannot be read. Thanks

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  • Anonymous Mar 15, 2014

    pool pump operates manually but clock does not turn is it wired correctly?

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I have a MODEL T1471BR TIMER THAT THE CLOCK QUIT WORKING WHAT IS THE PART # FOR A REPLACEMENT CLOCK


Look on clock motor for part number:
Ignore suffix for example WG430-10 ... ignore -10
http://waterheatertimer.org/How-to-replace-Intermatic-clock-motor.html
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#clock-motor
156T3085A Skipper screw
156T1948A trippers
WG1380 120Volt clock motor 60Hz
WG1383 208-240Volt clock motor 60Hz
WG430 120Volt clock motor 60Hz

Apr 09, 2013 | Intermatic T1471BR Timer 4PST 40A 125V...

1 Answer

Clock does not rotate


If clock does not rotate, then check if outlet has power. Check for loose wires.
If clock rotated before and stopped working, then clock motor might have gone bad.

Replacement clock: Taco timer uses the FM1 timer module.
Voltage and timer information appear on back of timer.

Open following links to identify timer and model number:
http://waterheatertimer.org/images/FM1-5-image.gif
http://www.intermatic.com/products/ec%204%20layer/mechanical%20time%20switches/modular%20din%20rail%20timers/fm1%20series%20-%2024%20hour%20and%207%20day.aspx

For example Taco timer module is 24 hour, and 120Volts, and doesn't have battery back-up.
-If timer has on-off-timer switch, then model number is FM1STUZH-120U
-If timer does not have on-off-timer switch, then model number is FM1STUZ-120U

More resources:
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#FM1

Sep 17, 2011 | Taco 265-1 / 563-2 Combination Analog 24...

1 Answer

Clock dial doesn't move


You posted under Intermatic outdoor sprinkler timer.

Intermatic clock motors can be replaced.
Clock motor has identifying numbers printed on motor.
Tip mechanism out of box using thumb spring located inside box at top.

Google search for that motor number, for example WG1573 is 240V clock motor for T104 timers.

Aplus sells Intermatic clock motors:
http://www.aplussupply.com/intermatic/timermotors.htm
Electric supply sells clock motors
http://www.electricsupplyonline.com/prod/intermatic-motors.php
Intermatic online store is expensive option:
http://www.intermaticstore.com/

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.

Feb 10, 2011 | Intermatic T8845PV - Sprinkler-Irrigation...

1 Answer

Set time of day dial stopped working. the timer is less than a year old. no one touched the timer before it stopped working


1) Clock motor might be bad. Release thumb spring located inside box and tip out mechanism to read number printed on clock motor. Google search that Intermatic clock number for replacement.
2) Check circuit breaker and make sure circuit has 120Volts.
3) Contact Intermatic: They take care of their customers.
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 15, 2011 | Intermatic R8806P101C -...

1 Answer

Timer not working. the rotating timer stops at the setting


Sounds like the clock motor has gotten weak.
You can replace Intermatic clock motors.

Snap out insides of timer and clock motor is located on back.
Motor has numbers printed on it that identify specific clock motor.

Motor is removable with small star screwdriver bit.
Clock motor has white wires that attach to terminals on front of mechanism.
Re-attach new clock to same terminals and tighten screws very tight.

If you have T101 or T103 timer, Grainger sells 125V clock for $16
If you have T104 timer, Grainger sells 208-277V clock for $16
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi

You can google search your specific clock motor number:
Clock motors also appear on links below:
http://www.electricsupplyonline.com/prod/intermatic-motors.php
http://www.aplussupply.com/intermatic/timermotors.htm

Dec 24, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

My Intermatic timer is not working. I replaced the WG1573-10D motor but still it does not work. The manual override works so the power supply is ok. Any suggestions welcome.


Your question doesn't provide enough information.

You have 240Volt T104 Intermatic timer?
A) WG1573 is for 240 volt timer. If you have T101 or T103 timer, it takes 125V clock motor.
http://www.grainger.com/Grainger/INTERMATIC-Time-Clock-Motor-1PNK1?Pid=search

B) This is new installation? and clock motor only worked when override was ON, so you bought new clock motor. But actual problem is that wires from Load and Breaker are reversed.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

C) Your timer worked fine in past years, but dial stopped rotating so you bought new clock motor?
You replaced clock motor.
Manual override works.

--And then your information ends.
Does clock motor work? Does the dial turn? Are your on-off trippers on the dial?
Are tripper worn down?
Buy new trippers.
http://www.grainger.com/Grainger/INTERMATIC-Timer-Tripper-2E054?Pid=search

If clock motor does not work, and circuit is 240Volts, then I suspect you connected clock motor to wrong terminals>? Clock motor connects to terminals 1 and 3.

Add a comment and fill in details so we can properly troubleshoot.

Dec 04, 2010 | RTO Intermatic Inc Wg1573-10d Replacement...

1 Answer

The dial on the intermatic water heater timer is not rotating on it's own and is easy to turn in either direction-without pulling it out and setting the time. The unit is only 1 year old..Can I replace the...


You can replace clock motor on many Intermatic timers:
Snap mechanism loose using metal spring top inside box.
Tip mechanism out and get clock motor number off motor.
Google search specific clock motor number.

Aplus sells many clock motor:
http://www.aplussupply.com/intermatic/timermotors.htm
Electric supply online sells clock motors
http://www.electricsupplyonline.com/prod/intermatic-motors.php

Grainger carries inexpensive clock motors for T101, T103, T104 timers.
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi
T101 and T103 use 125v motor
http://www.grainger.com/Grainger/INTERMATIC-Time-Clock-Motor-1PNK1?Pid=search
T104 uses 240v motor
http://www.grainger.com/Grainger/INTERMATIC-Time-Clock-Motor-1PNK2?Pid=search

Dec 01, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

The yellow time dial has stopped turning and the auto switch cannot activate the sprinklers


If I understand correctly, the manual override does not work, and the clock dial does not turn.

It seems odd that both things would happen together. Usually the clock motor stops but the manual override still works.

Check that your timer has electricity. Check your breaker. It sounds like the electricity is off.

Does your manual override snap clean and crisp, or it it sluggish? If the manual override is sluggish, the timer mechanism may be rusted.

Snap the timer out from the box and look at the condition of the gears, and the override lever. If the timer is rusty and the manual override does not snap clean and crisp, then the timer needs to be replaced. Buy a new timer and swap out the insides without changing the box.

You might need a clock motor

Snap out the mechanism and get the number off clock

Intermatic site shows pages of clock motors: They are priced high, but cheaper than new timer.
https://www.intermaticstore.com/ASPI700W.pgm?task=menucntrl&menuopt=TM

Aplus supply sells assortment of Intermatic clock motors.
http://www.aplussupply.com/intermatic/timermotors.htm

To search these pages quickly for your clock numbers, use browser Find (Click edit at top of bowser, click Find)

Intermatic has a page with manuals:
Open page, click plus next to timers and scroll down to sprinkler and irrigation timers
http://www.intermatic.com/customer%20service/instruction%20manuals.aspx
It's good to have the manual on hand in case the product is discontinued

Nov 09, 2010 | Intermatic R8806P101C -...

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