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Thread: Choosing the right timer

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    Choosing the right timer

    My timer is no longer working. I got two 101M Intermatic timers (one 120v and the other 240v) -- but found that none of them is the right match.

    I am guessing this is 103M (which is no longer in production, but available on eBay/Amazon etc.) -- but looking into the photos of 103M, the wiring looks somewhat different. [in my timer the two wires from the motor go to pins 2 a& 4 from left, but in the 103M picture on eBay etc. they go pins 1 & 2).

    The model # on the timer is E10694 (both the Intermatic timers that I got have this number).

    I am attaching couple of photos (including photo of the timer, wiring, motor in the back etc.). Can anybody please let me know which model exactly should I buy?

    BTW: I checked the voltage (between pins 2 and 4 from right) and this is 120v.

    Thanks in advance.

    -MDP

  2. Back To Top    #2
    JasonLion's Avatar
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    Re: Choosing the right timer

    That looks like a Intermatic 104 to me.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    Re: Choosing the right timer

    Thank you JasonLion for your response. The wiring is exactly same as Intermatic 104; however 104 is 240v, but mine is 120v; that is the caveat.................................
    NUbee!
    Rancho Santa Margarita, CA
    Gallons? Unknown. Medium sized pool.
    Filter? I think cartidge. Big beer can looking device with pressure valve on top running around 30 PSI
    Inground plaster pool.
    Spa above spills into pool. Waterslide above Spa spills into pool.
    Heater: Purex Triton MiniMax
    Vacuum: Hayward Navigator
    Pool guy does regular water maintenance.

  4. Back To Top    #4
    JasonLion's Avatar
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    Re: Choosing the right timer

    My guess is that they were originally regular 104s, but at some point someone switched the timer motor for the 120 volt version of the timer motor.

    If that is indeed a 120 volt setup, it is wired incorrectly. The white wire should not be switched on a 120 volt setup.

    Have you measured the voltage? The wire colors say 120 volts, but the timer terminal layout and wiring plan say 240 volts.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  5. Back To Top    #5

    Re: Choosing the right timer

    Thanks again JasonLion. Yes, I did measure the voltage and this is indeed 120v (between the two motor wires)!

    Do you think this will work if I replace the timer with T104? Does a 240v timer work on 120v set up?
    NUbee!
    Rancho Santa Margarita, CA
    Gallons? Unknown. Medium sized pool.
    Filter? I think cartidge. Big beer can looking device with pressure valve on top running around 30 PSI
    Inground plaster pool.
    Spa above spills into pool. Waterslide above Spa spills into pool.
    Heater: Purex Triton MiniMax
    Vacuum: Hayward Navigator
    Pool guy does regular water maintenance.

  6. Back To Top    #6
    JasonLion's Avatar
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    Re: Choosing the right timer

    Ideally you should switch to a t101 and only switch the black wire.

    The t104 will not work out of the box, as the timer motor it comes with requires 240 volts.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  7. Back To Top    #7

    Re: Choosing the right timer

    Should I get the 120v T101 or the 240v? And how should I change the wiring? Sorry, too many questions -- but really appreciate you responding so quick!
    NUbee!
    Rancho Santa Margarita, CA
    Gallons? Unknown. Medium sized pool.
    Filter? I think cartidge. Big beer can looking device with pressure valve on top running around 30 PSI
    Inground plaster pool.
    Spa above spills into pool. Waterslide above Spa spills into pool.
    Heater: Purex Triton MiniMax
    Vacuum: Hayward Navigator
    Pool guy does regular water maintenance.

  8. Back To Top    #8
    JasonLion's Avatar
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    Re: Choosing the right timer

    The t101 is by definition 120 volts. You wire the black wire the same, and simply connect all the white wires together. There will be a clear diagram included with the new timer.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Choosing the right timer

    Great. So here is my understanding, please correct me if I am wrong:

    Tie both the white wires and connect them on the left most pin (currently no wires attached to this) [2nd picture from top]
    Connect the left black wire on pin # 2 (from left)
    Connect the right black wire on pin #3 (from left)
    NUbee!
    Rancho Santa Margarita, CA
    Gallons? Unknown. Medium sized pool.
    Filter? I think cartidge. Big beer can looking device with pressure valve on top running around 30 PSI
    Inground plaster pool.
    Spa above spills into pool. Waterslide above Spa spills into pool.
    Heater: Purex Triton MiniMax
    Vacuum: Hayward Navigator
    Pool guy does regular water maintenance.

  10. Back To Top    #10

    Re: Choosing the right timer

    Just checking if anybody could offer advise on the timer wiring questions above..... Thanks in advance...
    NUbee!
    Rancho Santa Margarita, CA
    Gallons? Unknown. Medium sized pool.
    Filter? I think cartidge. Big beer can looking device with pressure valve on top running around 30 PSI
    Inground plaster pool.
    Spa above spills into pool. Waterslide above Spa spills into pool.
    Heater: Purex Triton MiniMax
    Vacuum: Hayward Navigator
    Pool guy does regular water maintenance.

  11. Back To Top    #11
    n240sxguy's Avatar
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    Choosing the right timer

    On the t101 you will run both white wires on the "A" pin on the left. Your black coming in will go to pin 1, and pin 2 will go to your pump.


    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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    Divin Dave's Avatar
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    Re: Choosing the right timer

    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

  13. Back To Top    #13

    Re: Choosing the right timer

    Thank you very much n240sxguy and Divin for your kind responses.
    NUbee!
    Rancho Santa Margarita, CA
    Gallons? Unknown. Medium sized pool.
    Filter? I think cartidge. Big beer can looking device with pressure valve on top running around 30 PSI
    Inground plaster pool.
    Spa above spills into pool. Waterslide above Spa spills into pool.
    Heater: Purex Triton MiniMax
    Vacuum: Hayward Navigator
    Pool guy does regular water maintenance.

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