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Thread: How to test Compool 3800 TS-5L temperature sensor

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    adelman's Avatar
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    How to test Compool 3800 TS-5L temperature sensor

    Anyone know how to test a Compool 3800 TS-5L temperature sensor?

    Are they resistive, and what would nominal resistance be at 60-70F?

    I'm getting an intermittent dreaded "Err1" on the Compool, and sometimes erratic temperature reports. I suspect the problem is the wiring between the controller and sensor getting wet, but before I attack it I wanted to try to isolate and test the sensor itself.

    Any idea how to test such a sensor for basic functionality?

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    In the Industry

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    Re: How to test Compool 3800 TS-5L temperature sensor

    There is a resistance chart somewhere but you can always swap it with, or compare it with the freeze sensor.
    20X40 30,000 gallon gunite pool

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    Pool Clown's Avatar
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    Re: How to test Compool 3800 TS-5L temperature sensor

    Take it off and look at it. It may be split, or cracked. then you will know right away if its bad.
    Factory Warranty Station for:
    Jandy/Zodiac, Pentair, Sta-Rite, Raypak, Polaris,
    and Paramount pool cleaning systems.

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