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Thread: timer stopped working

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    Cabana Boy's Avatar
    Join Date
    Jul 2007
    Sacramento, CA

    timer stopped working


    I have an Intermatic pump timer for my pool. I'm guessing the whole pool and pump system is over 20 years old. The timer stopped its not activating the pump anymore. There are actually two for the main and one for a booster pump. The circuit breakers are fine, it sounds like the timer is running like normal, but the dials aren't turning.

    Any easy ideas I can try?
    14 x 32 x 6 (ave depth) 20K gallons - IG gunite pool. Challenger 1.5 hp pump and cartridge filter.

  2. Back To Top    #2
    Isaac-1's Avatar
    Join Date
    May 2010
    SW Louisiana

    Re: timer stopped working

    Replacement parts are available for many Intermatic timers, however at that age it may be worth it to replace the whole thing.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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  3. Back To Top    #3

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: timer stopped working

    +1 what Isaac said.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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  4. Back To Top    #4

    Join Date
    Jun 2007
    New Jersey

    Re: timer stopped working

    If they are side-by-side, look for an oblong horizontal hole at the very top center of the back plate. You should see gear teeth and they should be moving. If not, it can be fixed with a new motor. Just take the old one to an Intermatic dealer, every town has one. If the gear is moving, you can take it out and look at it, but any fix is going to be low confidence. You can swap just the mechanism, which is cheaper and much easier than swapping the whole thing. For example, if it is a T104 timer, the mechanism alone is a T104M. Just remember to disconnect at the breaker and double check circuit is dead before messing around in there.

    Other two-in-one models should also have a place to view if the motors are working.
    Current: 28,000G 18'x36' I/G AnthonySylvan Plaster; Waterway 60 sq.ft. DE Filter; 1.0hp x 1.65 SF Two-Speed (B2982) WhisperFlo; 2004-Present
    Previous: 40,000G 20'x40' I/G Koven unlined WWII salvage 5/8" marine steel; Lomart Stainless Sand Filter; 3/4hp Hayward SuperPump; 1946-2003 (managed by me from about 1964)
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