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Trippers (ON & OFF) are damaged for my GE Mechanical Timer Switch 15307. I cannot find replacement. These trippers are small. All I can get are large that stops clock dial turning. Please help

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Posted on Jan 02, 2017

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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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SOURCE: I have a Paragon 7008-00 timer that has no trippers

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Posted on Dec 30, 2009

Testimonial: "thank you very much for your responce. I had tryed the paragon website and it was very little help to me. I have found the correct trippers now."

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SOURCE: I have a Area Lighting Research 24hr Time Clock

First this model is a 230V model I believe. That means the motor runs on 230V. IF it's working when it's "ON" then you probably have a line and load set of wires reversed. Look at your wiring diagram. I believe 1 and 3 are line and 2 and 4 are load. Since the timer motor is connected to term 1 and 3 it should receive power at all times. When the switches trip then 1 is connected to 2 and 3 is connected to 4. If I don't have the numbers right on your model, you can see the two small wires from the motor. These should both be Line on a 230V model.

Posted on Jul 03, 2010

SOURCE: Timer keeps time, but sticks at tripper points

1) Clock motor needs replacement:
Link below shows timer and wiring manuals.

2) 120Volt Clock motor sells for $43 at Frontier lighting,Photo.Cells...Time.Controls,Replacement.Motors

3) New Tork 1103 sells for $55. Just swap out insides without changing box.

4) Intermatic crossover for Tork 1103 shows Intermatic T103 timer.
Amazon sells T103 for $50

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Posted on Jan 23, 2011

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SOURCE: Intermatic Tl11-70 24-Hour Mechanical Time

With the Intermatic timers I'm familiar with, pulling out the dial but, if it pulled out and turns to lock, make sure you have it back the way it was. Obviously the time is doesn't matter because you are using it manually. Anyway, the dial shouldn't really effect the manual switch. If you disconnected any wires or if any came off , you will need to put them back. The system is pretty simple, just like a house switch. It sounds to me like the breaker is tripped or a wire came off.

Posted on May 13, 2011

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Where to purchase trippers for GE mechanical time switch model #15163?

This actually a Jasco 15163 and according to it takes a Jasco 15602 tripper set. This tripper set can be found for online order at

Jul 03, 2014 | General Electric GE 56941 24-Hour Outdoor...

1 Answer

I have a Tork 1101 timer and up until now has worked fine. Now it won't shut off. The mechanical on/off tabs are set correctly. It turns on and as the timing wheel comes around, the shut off tab...

If clock is rotating on time, next suspect is P47 trippers have worn down. Trippers are made of softer metal so they wear down instead wearing down the on-off lever, and that way the timer lasts longer.,Photo.Cells...Time.Controls,Replacement.Trippers

New replacement Tork 1101 120Volt timer can be purchased on-line at Amazon etc.
Home Depot sells the 120V GE 15306 indoor-outdoor version of Tork 1101 timer.
Replacement timer in Intermatic is T101

Jul 24, 2011 | Kitchen Ranges

1 Answer

I need to know how to set this timer for a large swimming pool, and how long I need it to run, to keep it clean. I believe it is about 35,000 gals., in-ground pool.

You have Intermatic mechanical timer connected to swimming pool pump/filter.
Open following link to read about setting timer:
Lift and rotate dial until current time is lined up with stationary pointer.
Put on-off trippers on outer edge of dial.
Timer comes with 2 sets of trippers, and you can order replaceable trippers. Up to 12 sets of trippers can be added to dial for a total of 12 ON and 12 OFF events each 24-hour period.
For 35000 gallon, pump should run at least 6 hours each 24-hour period. During freezing weather, if pipes are above ground, you can remove trippers from dial, set override lever to ON position, and run pump 24-hours to prevent frozen pipes.

Jul 12, 2011 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

GE Indoor Outdoor Timer # 15306 the clock is working and the when the time for it to go on it goes on but when the time comes for it to shut off it does not trip the off switch. I then have to shut it down...

1) If analog dial keeps time, I can only guess that OFF tripper is not in position correctly, or tripper is worn or defective, or that manual override lever is defective. Trippers are made of softer metal so they wear down before other parts of timer.
2) Buy Tork P47 trippers to replace GE 15306 trippers

3) Open following link for GE timer resources:

4) 15306 is heavy-duty indoor-outdoor version of Tork 1800 series or 7200 series 120Volt analog timer that is sold online and at Home Depot under GE brand name.

5) You can buy new timer at Home Depot and return defective one in new package.

6) The on and off trippers are attached to the analog dial.
Dial rotates as time passes.
Trippers make physical contact with the manual override lever. The ON tripper pushes lever one direction and the OFF tripper moves lever other direction.
The override lever rotates a cam located on back of timer that opens and closes electrical contacts.

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Fixya is always less expensive than a service call.

Jun 02, 2011 | General Electric GE 56941 24-Hour Outdoor...

1 Answer

How to set it to switch on for 5 minutes every 15minutes.

If you add a comment and say which timer you have, I can help with specific information.
Regular off-the-shelf timers will not cycle the way you want.
If you want a timer to cycle ON 5 minutes for every 15 minutes, you will need a cycle timer.
This timer rotates around in full circle each 30 minutes.
Set trippers around outer edge of timer dial.
Unit shipped with 10 trippers, each tripper represents 15 seconds so you would need 40 trippers.
20 trippers = 5 minutes.
Amazon sells additional 156T1950A trippers:

Feb 23, 2011 | Hardware & Accessories

1 Answer

Power was out last week . Our timer was set at 5 pm on and 12 midnight off. Now the lights are on at 8 am and off at 3 pm.Please help

You posted under Intermatic 24-hour mechanical timer.
When power goes out, the current time has to be reset.
Pull yellow dial outward, and then rotate dial until current time lines up with silver pointer.

Some folks mistakenly move the silver pointer when trying to set current time.
The silver pointer is stationary at the 6 o'clock position.

To see sample photos of timer:

Model number of timer shows on inside of timer door.
This type of timer has on and off trippers attached to dial.
Dial rotates as time passes.
Trippers push a lever back and forth that opens-and-closes circuit to lights.
You can buy replacement clock motor and trippers at Grainger:

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 08, 2011 | Intermatic & Indoor/Outdoor Rain Tight...

1 Answer

This is a mechanical timer. The clock runs, but the timer never turns on the pump.

If the clock runs, the only thing left is the switches - and trippers.

If you can power up the pump by manually moving the switch from OFF to ON, that means the switches are good. The trippers are likely going to be the problem.

This timer needs white (or bright metal) "ON" trippers and black "OFF" trippers to turn the pump on and off at the times you select. The picture below shows a white ON tripper at 3PM (between 2 and 4) and a black OFF tripper at 11PM (between 10 and 12). This timer turns the load on at 3PM for eight hours and shuts it off at 11PM. You must have BOTH color trippers to turn ON and OFF. The trippers should be seated fully against the edge of the timer disc, and the screw tightened fully by hand.

More below the picture.


The manual can be seen here. Please rate my reply and good luck!

Dec 28, 2010 | Intermatic Mechanical Timer Switch - Pool...

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.

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

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.


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

1 Answer

I having troble with my t103 timer to turn the lights on manualy i try to set the timer but for some reason doesn't work what can i do ???

T103 Intermatic timer has 120Volt clock motor and can control 120V or 240V Loads.
Wiring for timer is shown on following link:

Troubleshoot T103:
1) Manual override is working correctly, and it snaps crisp and clean, and Load turns on-and-off.
That means timer is basically good.

2) Next look to see if yellow dial is rotating.
If dial is not rotating, then 120Volt clock motor needs to be replaced.
Take photo of wiring and mark wires before starting.
Remove two white wires connected to screw terminals 1 and A.
Snap timer mechanism out of box, clock motor is on back of timer.
Use small star screwdriver to remove old clock motor.
Reattach white wires on terminals 1 and A, tighten screws very tight.
Reset current time: lift and rotate dial until current time lines up with silver pointer.
Grainger sells 125V clock motor:

3) If dial is rotating, but gets stuck at certain times, or runs slow, then replace clock motor.

4) If dial is rotating, and trippers are attached to dial, but timer does not turn ON, then trippers are worn down and need to be replaced.
Grainger sells the T103 trippers

5) How Intermatic mechanical timers work:
Dial with ON-OFF trippers is rotated by clock motor.
Trippers on dial contact ON-OFF lever.
ON tripper pushes lever one direction.
OFF tripper pushes lever opposite direction.
Lever moves electrical contacts on back of timer that turn Load ON-OFF.
Manual override lever clicks back and forth with each ON-OFF action.


Nov 20, 2010 | Intermatic T103 Indoor 120-Volt 40-amp...

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.

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
Grainger sells accessories for Intermatic timers

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

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