Question about Intermatic & Indoor/Outdoor Rain Tight Timer

2 Answers

Connected motor,it worked. Disconnected then connected again it

Failed. repeated connect it worked, repeat connect again it fails. Sometimes it will run sometimes not!

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  • donkey24 Feb 23, 2009

    solution did not address my problem. surfaces are clean and have power but the motor still doesn't work.

  • donkey24 Feb 23, 2009

    solutions sent me did not work. Why would timer MOTOR work sometimes and not others when conditions are the same?

  • donkey24 Feb 24, 2009


  • donkey24 Feb 24, 2009

    Solutions you sent me did not work. Motor will work sometimes and not other times with the same conditions. I plug it in and it may run and the next time it won't. I'm talking about an intermatic mechanical time switch T104.


2 Answers

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  • Master
  • 3,614 Answers

Better check and clean the surface. o

Posted on Feb 23, 2009

  • micromaster
    micromaster Feb 23, 2009

    you should check all the wiring connectiions fropm there, a possible loose connections might do so.


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  • Master
  • 547 Answers

Not getting right amount of power.

Posted on Feb 23, 2009

  • 1 more comment 
  • albert getty
    albert getty Feb 23, 2009

    this may be lose wire or bad conicetion

  • albert getty
    albert getty Feb 23, 2009

    what i said was the same as the guy you said fix your problem?

  • albert getty
    albert getty Feb 24, 2009

    power is not high or low enought for motor motor shuts down then resets and works again


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How wire 8 pin 240 volts FUJI ST3PR repeating timer

Timer specs show AC220 with range 24-380VAC
R suffix means on-delay timer... but the appearance looks like repeat cycle
It appears that 240V power is connected to terminals 2 and 8
Switch terminals are 4-6 and 4-5
Terminal 4 toggles back and forth between 5 and 6
And terminal 5 toggles on-and-off separately
Some timers require constant voltage on terminals 2 and 8, some require momentary voltage to start the cycle

Some wiring tips following link:


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Just bought a new Malibu 120 runs a few minutes and shuts off repeat ly after reset

Malibu 120 has photoeye.
At night, the darkness causes photoeye to turn lights ON
Lights located near to the photoeye can cause the photoeye to 'think' it is daytime... so photoeye turns lights OFF...
Then it's dark again because lights are off... so photoeye turns lights ON.
The cycle repeats ON-OFF all night long.


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How to install intermatic PB913N66

Open following link to identify timer:

The timer has 4 terminal connections.
2 terminal connections are for the clock motor, and 2 terminals are switched just like ordinary light switch.
See how to connect terminal ends to electrical wire by crimping:

Which 2 terminals are for clock, and which 2 are for switch?
Test across both sets of terminals using continuity tester or multimeter set to read ohms.
Then rotate override knob to next position, and repeat test on both sets of terminals.
The set of terminals that changed when override was rotated are the switch terminals.
The other set of terminals are the clock terminals.

Connect 120Volt Hot and neutral to the clock terminals. Turn on power and make sure clock dial rotates.
Next: the cable going to Load has 2 wires: Black and white.
Cut the black wire. Crimp terminal connections on each end. Connect each end of black wire to the switch terminals.

To set timer for on-off operation, open following link:

Sep 25, 2011 | Hardware & Accessories

1 Answer

How wiring intermatic timer t51211bc i have one circuit control by timer ....and one circuit contro by photocel indor lite and outdoor lite

T51211BC is 120Volt timer that can be wired many different ways because there are two internal relays, and each relay has NO and NC terminals. One relay is controlled by timer dial trippers, and other relay controlled by dawn-dusk photo eye

Timer wiring cannot be fully explained with words.
Below is basic hook-up for your 120Volt wiring application, and then you can use a tester and experiment with the knob settings, and tripper settings.

1) You have 4 cables:
one cable from circuit breaker box;
one cable going to photo control;
one cable going to outdoor Load (lite);
one cable going to indoor Load (lite).

2) Cable from circuit breaker has 2 wires:
Black Hot wire connects to terminal 1
White Neutral connects to terminal 2
This will power the clock motor and timer relays.

3) Photocell has 3 wires:
Black connects to terminal 1
White to terminal 2
Red to terminal 3.
Photocell turns relay on-off for Circuit B
Do not mix different size wires under same screw terminal, or smaller wire will come loose over time. Also do not mix stranded wire and solid copper under same screw terminal for same reason.

4) Terminals 4 thru 12 are 'dry'.
Dry terminals receive no power when power is applied to terminals 1 and 2.
To put power on dry terminals, so that Load will have power, attach Black hot wire from breaker to terminals 9 and 12.
So add a jumper wire from terminal 1 to terminal 9 and another jumper wire from terminal 9 to terminal 12.
120Volt power is now connected to terminals 1, 9 and 12

5) Circuit B is dawn to dusk for outdoor Load.
Outdoor load cable has Black and White wire.
Connect outdoor Black wire to either terminal 10 or 11.
To test which is correct for your application, set switch to Auto, and then test across terminals 12 and 11, and across terminal 12 and 10. Repeat test after dark. Rotate knob B to each position and repeat test.
Connect outdoor White wire to terminal 2, and this will complete the circuit.

6) Circuit A is Dusk ON and timer OFF
Indoor cable has Black and White wire.
Connect indoor Black wire to either terminal 7 or 8.
To test which is correct for application, set switch to Auto, and then test across terminals 9 and 8, and across terminal 9 and 7. Repeat test after dark. Rotate knob B and repeat test.
Connect outdoor White wire to terminal 2, and this will complete the circuit.

Aug 04, 2011 | Day-Timer Intermatic T51211BC 7-Day Dial...

1 Answer

Intermatic c8866 1 hr cycle timer- wiring- I have 2 hot legs & neutral. Neutral goes to the clock, one hot leg goes to switch common, what does 2nd hot go to- normally open or normally closed? this is...

You have C8866 repeat cycle pump, that repeats the same program each hour.

Your well pump is 240Volt which is why you have two Hot wires.

One Hot wire connects to COM terminal.
Your Neutral wire connects to Clock terminal.
This will power the clock motor.

One hot wire to Load connects to NO normally open terminal.
This terminal turns ON when timer turns ON.
NC terminal is ON at all times, EXCEPT when timer turns ON, and then NC terminal turns OFF

Your second Hot wire runs directly to pump and does not connect to timer.
See diagram below:


Jan 07, 2011 | Intermatic C8865 Timer, 1HR CYCLE TIME, 30...

1 Answer

The dial doesn't advance in time but the light works when I manuallly move the dial

You posted under Woods 59017 timer.

1) If this is a new installation, then timer is wired incorrectly.
White wire is probably wrong, white wire is connected to Neutral wire or ground wire so timer motor operates.
Open link to identify product for sure and read detailed wiring instructions.

2) If timer worked in the past, and stopped working, then it sounds like timer has gone bad.
Buy another 59017 from Home Depot, and then take defective one back with receipt.

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.

Dec 22, 2010 | Woods 59017 Mechanical Repeats Daily Wall...

1 Answer

I have an intermatic C8865 timer. i want to wire it into an EFM model AF150-1 coal stoker furnace, because the fire goes down to far inbetween actual times heat is called for. also have main switch for...

Intermatic C8865 timer is a 5-hour cycle timer that repeats same cycle each 5 hour period.
This timer has 120Volt clock motor and is 120V timer.
Timer has NO and NC terminals.
NO terminal turns ON when timer turns ON
NC terminals is ON all the time, except when timer turns ON. At this point NC terminal turns OFF.

You have 3 things: 120V timer, 120V honeywell transformer, 120V stoker motor/fan
The transformer needs to be ON at all times.
The stoker motor is going to turn ON when the cycle timer turns ON.

You have 120V cable with black wire, white wire (and bare ground, which connects to green ground screw and to other bare grounds and won't be discussed further)

Black wire is hot
White wire is neutral

Black wire connects to 'Switch common terminal' on timer.
Same wire also connects to black wire on Honeywell transformer.

White wire connects to 'Clock terminal' on timer
Same wire connects to white wire on Honeywell transformer and to white wire on Stoker motor.
So all the white wires are connected together.

Last wire is black wire to stoker motor.
This wire connects to NO terminals on timer.

Here is drawing.
Add a comment any time

Dec 13, 2010 | Intermatic C8865 Timer, 1HR CYCLE TIME, 30...

1 Answer

Clock turns untill pump turns on then stops. does c8866 timer work with well control box?

If I understand correctly, you are controlling 240V water well pump with Intermatic C8866 Repeat timer.

So you must be using pump to irrigate, and want to turn pump on at certain times of day for short periods ... and want this schedule to repeat continually non-stop.

1) The c8866 repeats the same program every 4 hours so this is good choice for irrigation and it just turns the circuit on-and-off so it works fine with well control box (unless you want more complex programming).
Many types and prices of cycle timers
More cycle timers

Let me give a buckshot answer and see if I hit one of the targets you have.

2) C8866 according to manual:
a) You have on-off trippers
b) First ON tripper turns on load for 32-40 seconds
c) Each additional ON tripper will lengthen ON time by 30 seconds

3) To lengthen ON time: add successive ON trippers into dial. Each successive tripper adds 30 seconds. Let's say you want ON time to be 3 minutes, you need 6 successive ON trippers.
Maximum timer setting is 240 minutes, so your ON-OFF program repeats every 4 hours.
10 Tripper pins come with timer.
Buy more pins at Grainger for 2.69

4) Did you say the clock stops running after hitting the tripper? If so, maybe you need a bit of grease on the pins ... or a new clock motor? Buy clock motors at Aplus
5) Review the wiring
Hots from Breaker connect to COM and CLOCK poles
1 Hot to Load connects to NO normally open pole
Other Hot to load connects to CLOCK pole

6) You can reverse ON-OFF programming by the following:
Change Hot to Load from NO to NC pole and this will reverse on-off programming

Oct 02, 2010 | Hardware & Accessories

1 Answer

How do you wire a t103 intermatic timer to 240v

You could wire it to 240V but you will need to move one of the timer motor wires to the neutral conductor. That way the motor would run on 120V. but both circuits could then be connected to terminals 1 and 3. IF you fail to remove the motor wire from terminal 3 then you will burn up the motor. You actually need a T104M for 230V operation

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

2 Answers

Intermatic outdoor can't reprogram. display reads NoOp

Les, First thing to do is to change the battery and see if the timer will allow you to reprogram it. Sometimes these timers will fail, as some models have a known history of failing fairly often.

NoOp, means non operating within the Intermatic line of electronic timers, so in order to see if the unit has failed or is just malfunctioning, due to a weak battery, remove the existing battery and install a fresh, new one.

You can remove the existing battery by flipping down the front switch panel and removing the battery tray with either your fingernail or a small flat bladed screwdriver. As your timer is showing the NoOp, you don't have to worry about losing your programmed on/off cycles, so you can take your time. Normally, if you're changing the battery, you get about 30 seconds to do this with some models of Intermatic timers, or you'll lose the settings. The newer models store the program regardless of how long it takes to change the battery.

Once you've replaced the battery, press the Reset button on the timer and allow it to refresh. If the NoOp is gone, just reprogram the timer with your on/off cycles and days and you're back in action. If the timer doesn't clear, you'll likely need to replace it, as it could be damaged and will not be able to be programmed again.

Usually, changing the battery and resetting the timer works about 60% of the time for me, as I've installed thousands of the various Intermatic timers in customer's homes over the years.

Hope you find this Very Helpful and best regards!

Sep 09, 2009 | Intermatic Inc. EJ500C Digital Wall Switch...

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