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Thread: Intermatic Timer Not Working

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    Join Date
    Jul 2011
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    St. Paul, MN
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    244

    Intermatic Timer Not Working

    When I opened my pool this spring my Intermatic timer is not working. It is model # T104P201. The on/off switch does turn the pump on and off, but the timer/clock is not turning.

    I checked all the wires and connections and everything looks ok. Do the clocks ever just stop working?
    20'x40' Oval 27,000 gallon Vinyl IG, Coverstar Auto Cover
    Hayward MaxFlo SP2303VSP, Sta-Rite PLD50 30 sq. ft. DE filter
    Rheem 266,000 btu natural gas heater
    Dolphin Nautilus Plus with Clever Clean
    TF-100 testkit w/ Speed Stir

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    Mod Squad jblizzle's Avatar
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    May 2010
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    Re: Intermatic Timer Not Working

    Rarely. But you can replace just the motor / timer mechanism.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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  3. Back To Top    #3

    Join Date
    Jul 2011
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    St. Paul, MN
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    Re: Intermatic Timer Not Working

    I thought they were very reliable as well. I did leave the breaker to the pump on all winter and hence the timer was running all winter That could have something to do with it.
    20'x40' Oval 27,000 gallon Vinyl IG, Coverstar Auto Cover
    Hayward MaxFlo SP2303VSP, Sta-Rite PLD50 30 sq. ft. DE filter
    Rheem 266,000 btu natural gas heater
    Dolphin Nautilus Plus with Clever Clean
    TF-100 testkit w/ Speed Stir

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    jcowart's Avatar
    Join Date
    Jun 2012
    Location
    Labelle, TX
    Posts
    320

    Re: Intermatic Timer Not Working

    They do fail... Hey it's man made. You need the T104M. I have not seen them in the box stores. Might have to get it from an electrical supply house.
    17500 gallon Doughboy AGP, Hayward DE filter, waiting for the 1.5hp DB pump to go out.
    Learn to take the advice here and be trouble free or use the pool store's advice. "You can't do both and get very far"

  5. Back To Top    #5

    Join Date
    May 2009
    Location
    Youngsville NC
    Posts
    395

    Re: Intermatic Timer Not Working

    I've found that it is actually better to leave the timer on all winter, even if you're not running any load on it.
    16x32 IG 19,000 gallons, Pentair 1.5 hp Energy Efficient Superflo pump (348024),vinyl liner, Chlorine dispenser, Hayward S-244T sand filter

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