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

1 Answer

"off" tripper works. "on" tripper has stopped working. have tried two other "on" trippers that work on other units, but they do not work either.

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1 Answer

If the manual override works correctly then wiring is good
The manual override connects to same lever that trippers push to operate timer, so manual override is a good diagnostic.
The ON-Off trippers push a lever one direction, and then the other tripper pushes lever other direction.


If the the ON tripper will not push the lever, then you need a new tripper >>> but you have put in trippers that work on another timer, and they don't flip the lever either. It sounds like the lever is worn out.

Once the lever is worn out, the timer needs replacement.
Buy another T-104 or T-104R, and then swap out insides without changing the box.

Grainger sells the T104 replacement timer without box
http://www.grainger.com/Grainger/INTERMATIC-Dial-Timer-Mechanism-2E353?Pid=search
Grainger sells accessories for Intermatic timers
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi

Posted on Oct 24, 2010

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1 Answer

The timer stopped working, so the system is only working on manual mode. what could be the issue?


If timer dial is not rotating, then check for power to timer.
If timer has power, and dial is not rotating, then replace clock motor.
If trippers are worn down, then replace trippers.
http://waterheatertimer.org/Intermatic-trippers-and-parts.html#sprinkler

Sep 21, 2011 | Intermatic R8816P101C -...

1 Answer

I installed a new T104 m for my pool pump. The clock works fine and it works fine manually. The on and off stops do not turn it on or off. The clock goes right past the on and off stops and they don,...


You installed new 240Volt T104 Intermatic timer.
Cause of problem is not determined, so read information below and then add a comment with further observations.

According to question:
Timer is wired correctly.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html
The on-and-off trippers are installed on dial, but do NOT click the override lever back and forth.
Both ON and OFF trippers are on the dial.
And the timer is NEW and not used, and trippers are NEW and not used.
And the dial rotates and keeps good time, making 1 full rotation each 24 hours.
And the manual override lever works and turns load (pool pump) on-and-off.

Open following link to view photo image of OFF tripper coming in contact with manual override lever.
Trippers are soft metal, and made to wear down. When tripper gets old, it will slide over the lever instead of move the lever.
http://waterheatertimer.org/images/WH-lever-005-500.jpg
Open following link to read how to set timer, and see close-up images of timer with trippers on dial, and tripper order number for replacement trippers.
http://waterheatertimer.org/pdf/How-to-operate-and-set-T104-timer.pdf

Take a moment and rate answer:
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.

Sep 03, 2011 | Intermatic T104M 208-277Volt 40-amp Timer...

1 Answer

Timer will not trip. do I have wrong tripper?


Unknown if this is about setting up new timer, or about timer that worked before and trippers need replacement.
Open following link for instructions in troubleshoot format, and links to replacement trippers and tips for having power pack to last longer:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

Aug 11, 2011 | Malibu Intermatic Inc. ML300RTW 300-Watt...

1 Answer

How do I set the timer with the two pins


The pin are probably trippers?
http://waterheatertimer.org/images/ML-Power-Pack-trippers-500.jpg
The trippers are red and black: black for ON and red for OFF.

Open following link for illustration of tripper install, and troubleshoot that walks through steps needed to operate and set timer, and keep timer working for many years.
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

Aug 10, 2011 | Intermatic Inc. ML121RT Malibu Low Voltage...

1 Answer

Red pin missing from friend's Malibu outdoor timer. Need to replace. Numbers / info on timer: 120V 60hz, 600 W Max, 158ML, 1194B 300 W/Sec 06A


Open following link for power pack resources including link to Intermatic ML series trippers.
Same tripper fits all ML series timers.
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

For all Intermatic trippers and parts:
http://waterheatertimer.org/Intermatic-trippers-and-parts.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 17, 2011 | Malibu Intermatic Inc. ML300RTW 300-Watt...

1 Answer

Timer turns lights on for 2 seconds then shuts off ?????


Timer is malfunctioning, or trippers are worn down and don't fully push the switch over.
See it timer operates on manual override.
Buy new trippers, and/or buy cheap plug-in timer, and then set power pack to override, and plug power pack into cheap timer.

Power Pack uses 107SB189 ON tripper, and 107SB192 OFF tripper

For information on Intermatic/Malibu power packs showing troubleshoot steps, replacement trippers, links to manuals, useful links, warranties and tips:
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

Add a comment with your experience so others with same-similar problem can benefit.

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.

Apr 10, 2011 | Intermatic 200W Power Pack & 12v...

1 Answer

How do you set lighting to turn on and off throughout the day?


You posted under Malibu power pack.
If you have analog dial that rotates as time passes, then setting on-off times is accomplished by using black and red tripper.

Usually the timer comes with 2 red ON trippers and 2 black OFF trippers.
Place trippers on outer edge of dial and then set timer according to instruction manual.

If you need more trippers, they can be ordered
http://waterheatertimer.org/Intermatic-trippers-and-parts.html

Open following link if you need instruction manuals or troubleshoot steps for setting up power pack.
http://waterheatertimer.org/Malibu-power-pack-stopped-working.html

Add a comment with exact model number if you want more detailed instructions, and add your experience so others with same-similar problem can benefit.

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.

Apr 05, 2011 | Malibu ML200RT - Low Voltage Power Pack...

1 Answer

Timer will not turn water heater ON at set time, has to be done manually. However, it will turn water heater OFF at set time.


If this is new installation, check wiring. Hot and Load wires might be reversed.
Check that ON OFF trippers are both attached to yellow dial.
http://waterheatertimer.org/How-to-wire-WH40.html

If timer worked fine before, and started missing recently, then tripper pins probably worn out.
Trippers contact mechanical lever, and push lever on-and-off.
Trippers are softer metal and designed to wear out before lever.
If lever is worn out, timer needs to be replaced, but try new trippers first.
Buy trippers at Grainger
http://www.grainger.com/Grainger/INTERMATIC-Timer-Tripper-2E054?Pid=search
http://www.grainger.com/Grainger/timer-accessories/timers/electrical/ecatalog/N-8hi

How WH40 timer works:
Clock motor rotates dial.
ON-OFF trippers on dial contact lever.
ON tripper pushes lever one direction.
OFF tripper pushes lever other direction.
Lever moves electrical contacts together, or pulls contacts apart.
When lever moves on-and-off, manual override lever also snaps back and forth with audible clicking sound.

Using q-tip, add touch of white grease to lever where trippers contact.

geno_3245_110.jpg

Nov 25, 2010 | Intermatic WH40 - Water Heater Time Switch...

1 Answer

The off tripper pin is not turning off my timer. Why?


Does the manual override work?
If manual override does not work, then the timer is probably worn out.
Buy new T-104 (not T-101 or T-103 because these have 120V motor)
No need to replace box >>> new T-104 mechanism snaps out and fits old box

If override works then the tripper pin could be worn out.

How it works is this: The tripper pin come into contact with a metal lever, and the clock motor pushes the wheel until the tripper clicks the metal lever. The manual override is connected to same metal lever.
Tripper is softer metal and wears out before lever
e824683.jpg


Grainger sells Intermatic trippers:
f6ca61a.jpgTrippers for T-104 series

4c6036b.jpgTrippers for 15 minute time-interval timers

Oct 08, 2010 | Intermatic T104R 208-277Volt 40-amp Timer...

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