Question about Intermatic T104R 208-277Volt 40-amp Timer Switch-Double Pole / Single Throw

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

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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
the off tripper pin is not turning off my timer. - e824683.jpg

Grainger sells Intermatic trippers:
f6ca61a.jpgTrthe off tripper pin is not turning off my timer. - 4c6036b.jpgT-104 series

4c6036b.jpgTrippers for 15 minute time-interval timers

Posted on Oct 08, 2010


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SOURCE: Trippers do not work and jam time wheel

I'm having this same problem. Anyone have a solution for this?

Posted on Nov 24, 2009

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My intermatic timer dial sticks on the last pin of the timer. It will turn my sprinklers on and go through all 4 zones, but then the clock will stick on the last pin. I have moved the pins and it stops...

The WG1573 240Volt clock motor has gotten weak and needs replacement:
Copy following links for part replacement and troubleshoot resources:
Order new 156T1978 trippers also, since they are made of soft metal and designed to wear down so it saves wearing out timer.
Clean out timer with compressed air, and add bit of white grease to point where tripper meets on-off lever. Turn off power and spray bit of highly flammable WD40 to gears. use protective mask and do not breathe WD40 since it affects respiratory and circulatory system.
Remove trippers from dial, and use manual override lever until replacement clock motor arrives.

If you need further help, I’m available over the phone at

Aug 05, 2013 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

My timer works fine but I need to buy extra trip pins so that I can turn my waterfall off for three hours at a time. Where can I buy extra trip pins?

Timer is not identified.
Copy following links for intermatic timers, and trippers:

If you need further help, I’m available over the phone at

Jul 16, 2012 | Hardware & Accessories

1 Answer

Which way do the pins need to be positioned on a manual timer for it to be on, ie is it up or down for `on`

You posted under GE 15004 timer.
Push trippers down and then rotate tripper around dial to desired on or off time.
Release tripper and it tripper locks upward in place.

Other timers have segments and pins that are located around timer dial
The position for ON-OFF varies by brand and model number.

I suggest you turn lamp ON and make sure bulb is good, plug lamp into timer, set a few pins one direction or other, plug timer into wall. Manually rotate timer dial clockwise, and watch lamp turn ON-OFF to know how to set pins.

Also move the slide switch one direction and then other direction to see how override switch operates.
After checking operation, set pins exactly how you want, and then rotate dial clockwise until current time lines up with pointer located on inner dial.
Dial rotates with passing time and pins push small lever that opens and closes circuit.

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 03, 2011 | General Electric GE 24-Hour Timer, 2-Pin...

1 Answer

Where are the "never-lose pins"

Woods 59204 manual says pins, and I think the timer has tabs or segments instead.
These are located on the rotating part of dial.
Look at pictures on following link to see 4 basic pin-tab-segment layouts that are used to turn these timers on and off: It's likely that your timer will be one of these.
Some timers have pins that click in and out
Some have segments that pull up
Some have segments that pull out
Some have segments that push down
Add a comment any time.

The phrase 'never-lose' means the pin-tab-segment is permanently attached to the timer dial.
Older timers, and many box timers have loose pins or trippers that you attach to the timer dial ... and of course people lose these trippers and are constantly searching for their model number of tripper which is not available. And some of these older timers were expensive. For example the older style malibu power packs have trippers, but when the tripper wears out, there are no replacements and power packs are expensive.

Dec 11, 2010 | Woods INDUSTRIES 59204 OUTDOOR MECHANICAL...

2 Answers

Looking for timer pins-trippers

The Paragon 4000 series uses the Paragon X2772 tripper
Google search for Paragon X2772 tripper turns up sellers
Pair of on-off trippers appear to sell for about 9$

Oct 28, 2010 | Paragon 4001-00 24-hr Timer Control 120v...

1 Answer

I've set the time on/off and ive tried turning on manually but the lights wont turn on on exact time set. y? when i manually turn on the lights come on 2 hrs later or so, y doesnt it turn on right away?

If I understand correctly, you have an Intermatic timer.
The timer has a yellow dial that rotates around like a clock.

Does the manual override work?
If yes.
a) then the circuit has electricity
b) the lights are in working order

Does the clock rotate?
If yes
a) then the timer is probably good
b) the clock motor could be bad
c) the gears could be rusty and dirty

Do you have the current time set correctly?
Lift and rotate dial until current time lines up with silver pointer.

Do you have the trippers set on the correct time?
There are ON trippers and OFF trippers
Attach trippers to correct time
Tripper pins wear out

Suggestion: You sit in front of the timer and watch the trippers as they rotate to the bottom of the dial
When the trippers get to the bottom, they push a lever that turns lights on and off.
Look at the photo:

Here's a website that sells tripper pins and clock motors for Intermatic timers.
You can buy new trippers or clock motor

Answer this post if you still can't figure out the problem, or need more help.

Oct 23, 2010 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

Installed new T104 timer 3 mos. ago. Bldg. owner says the dial "hangs up" on pins--has to use manual on/off. Wiring is correct.

1) The clock motor might be bad if trippers hang up on pins
2) The timer might be exposed to dirt dust and moisture, in which case the T-104R raintight might be better
3) The tripper pins rotate around until they contact the tripper lever >> the pins push the lever >> new Intermatic timers have a bit of white grease on the lever where trippers contact
4) Test the manual override to see if it clicks back and forth crisp and clean >> the trippers click the manual override back and forth, so if override is sluggish, then timer might be bad >>> buy new timer and swap out insides without changing box
5) Sit and watch the timer and see if trippers hang up or they skip over the tripper lever> you might need new trippers. This seems odd with a new Intermatic timer.
6) The building electricity may have gone off and the timer is not set on current time and the bldg owner doesn't know how the timer works.

Timer accessories at Grainger


Oct 22, 2010 | Intermatic T104-20 Indoor Hot Water Timer

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Lost pcs.that turn on and off the little silver clips that screw onto the disc.where can i find replacements? the ones i found at the hardware store dont match tab is in a diffrent location. its the older...

If I understand correctly, you need tripper pins for a Paragon timer
At page bottom is a chart with model number and the tripper required

The two links above help you identify your timer model and identify the tripper.
After identifying tripper number, you have to do a google search for that tripper number

So, if you need more help, please answer back and we'll find the right timer and pin

If you have Intermatic timer, then you can buy pins at Grainger

Oct 21, 2010 | Paragon Hardware & Accessories

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We have an AMF Paragon 4001 timer for the light outside our building. The light goes on lately at the wrong time. We want it to be on at 7:00pm and off and 5:00am but it goes on at 12:00 at noon.

To set paragon timer: Pull large round dial straight out towards you, then rotate dial until correct time is lined up with stationary 'pointer' on front of dial

Sep 08, 2010 | Paragon 4001-0G Defrost Timer

1 Answer

The Off tripper does not switch timer clock off

The pins trip a switch behind the dial, you can't see them. Don't worry they will trip the switch and turn and off. Just slide them on the edge of the time dial where you want to go on and off and tighten.

If you need further help, I’m available over the phone at

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