Question about Intermatic Inc. ST01C Digital In-Wall Timer

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I have a T104P3 timer for my pool pump. It has already been replaced once by the pool installers. However, they are not helping me again with my problem. The time is set correctly as well as the turn on and turn off time. However, it does not ever turn on. I have to manually do this. Then I have to manually turn it off. What is the problem?

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1 Answer

Sounds like the ON tripper is worn down.
Check that dial is rotating correctly each 24-hours. If not then wiring might be wrong.
Open following links for troubleshoot:
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

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Posted on May 29, 2011

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1 Answer

What position is lever on intermatic pool timer t104p3 for timer to work?


Lever automatically moves back and forth as trippers pass.
Move lever to ON position, move to the right.
If timer dial is not rotating, then check wiring, or replace clock motor:
If timer worked before and stopped working, but dial still rotates, the trippers are worn down, replace trippers:
http://waterheatertimer.org/How-to-operate-and-set-T104-timer.pdf
http://waterheatertimer.org/Buy-T100-series-timers.html#pool
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T104

Gene
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May 20, 2014 | RTO Intermatic Inc Ej351c Timer Night...

1 Answer

How do I connect my Jandy AE-TI heat pump to my intermatic T104P3


1) Copy following link for wiring illustration ... assuming timer is supposed to control pool pump:
http://waterheatertimer.org/images/T104-to-contactor.jpg

2) T104P is 240Volt (208-277V) SPDT timer in P plastic outdoor enclosure.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T104

3) Jandy AE-TI is 208/230V pool heater.
http://www.bestbuypoolsupply.com/media/aemanual.pdf

4) Page 13 of Jandy manual shows single-phase residential wiring diagram.

5) First of all, power to main contactor is not interruped by timer, since this powers 24Volt transformer that controls the chip board and general operation.

6) The timer is connected to 'Auto-heat contactor.'
The confusion is what Load connects to this contactor? The water pump? Load is shown on diagram as 'pump time clock.'
I assume the load is the PUMP??

Dec 04, 2012 | Hardware & Accessories

1 Answer

Intermatic t104p3 pool timer will turn pump ""ON" with Manual Switch but will not shut "OFF" using Manual Toggle. Pool store showed me how to remove and look at the contacts on...


Thank you for including model number so answer can be accurate as possible.

T104P3 timer works with manual override so timer is basically sound.
Clock dial rotates and keeps good time, so WG1573 240Volt clock motor is good.
Trippers do not click on-off lever, so trippers are suspect.
Trippers are made to wear down so that timer mechanism lasts years longer.

Order extra clock motor and trippers at Grainger
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi

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

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you via e-mail while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

geno_3245_281.jpg

Feb 18, 2011 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

POOL TIMER T104P3 DIAL DOESN'T MOVE..HAVE POWER


If manual override turns Load on-off, and if override snaps crisp and clean, then timer is basically sound.
If dial does not rotate, then replace T100 series 240Volt clock motor.
Link below shows clock motor & trippers for T104 240volt timer.
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi

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 16, 2011 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

How to set Intermatic T104P3 - Pool-Spa Mechanical Time Switch... I believe this is the correct model. There are no instructions or data left on the gray metal box to verify what it is.. I got the model...


The T-104 is a 240Volt timer that will not work for 120V circuits
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html

The above link gives you information about the T104 T103 T101 in case you need to buy another timer
The difference is the voltages on the lines and voltage of the clock

1) How to sort out what you have:
-Which circuit breaker operates the timer and pump? If your circuit breaker is 240, then the pump is 240 and the timer is 240 so you most likely have the T-104
-To double-check: turn off the power and look at the name plate on the pump >>> the name plate will show voltage of the pump
-If breaker is 120, then you have T-101 that has three terminal screws inside the timer, or you have T-103 with 5 terminal screws inside the timer.

OK that's the basic information:
You say your trippers don't work.
Does the manual override work?

2) If the manual override does NOT work when you click it back and forth, and the unit has electricity, then the timer is probably bad. You can buy a new timer, and swap out the insides with old timer without replacing box.

3) If the manual override DOES work, then best news of all ... you may need new tripper pins
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi

http://www.grainger.com/Grainger/INTERMATIC-Timer-Tripper-2E054?Pid=search
6f76a78.jpg

Oct 19, 2010 | Intermatic T104 24h 208-277v Mechanical...

1 Answer

Clock for pool pump intermatic timer Model T104P3 stopped ticking


TO INSTALL THIS MOTOR REMOVE SCREW ON LEFT AND JUST BACK SCREW ON RIGHT A FEW TURNS, TIMER WILL ROCK UP OUT OF BASE THIS WAY . UN-HOOK WIRES ONE AT A TIME AND INSTALL WIRES FROM NEW MOTOR ONE AT A TIME.. THESE TWO WHITE WIRES GO TO LINE 1 AND 2 THESE ARE THE WIRES THAT GO TO THE 220 VOLT BREAKER ... NEED MORE HELP JUST GIVE ME A BUZZ.. JAY ..LOOK EBAY FOR .. Intermatic Timer Motor WG1573 / WG1573-5 clock POOL FIX

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1 Answer

Clock for pool pump intermatic timer Model T104P3 stopped ticking


LOOK HERE ON EBAY .. Intermatic Timer Motor WG1573 / WG1573-5 clock POOL FIXTO INSTALL THIS MOTOR REMOVE SCREW ON LEFT AND JUST BACK SCREW ON RIGHT A FEW TURNS, TIMER WILL ROCK UP OUT OF BASE THIS WAY . UN-HOOK WIRES ONE AT A TIME AND INSTALL WIRES FROM NEW MOTOR ONE AT A TIME.. THESE TWO WHITE WIRES GO TO LINE 1 AND 2 THESE ARE THE WIRES THAT GO TO THE 220 VOLT BREAKER ... NEED MORE HELP JUST GIVE ME A BUZZ.. JAY

Mar 28, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

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