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Thread: Halogen pool lights don't turn on below a certain temperature

  1. Back To Top    #1

    Join Date
    Jun 2010
    Location
    Dripping Springs, TX
    Posts
    125

    Halogen pool lights don't turn on below a certain temperature

    Why would my pool lights not come on when it gets cold? The approximate temperature is around 43/44 degrees where they no longer come on, even though the timer is set for them to turn on.

    I do have a dimmer installed, and it stays at 80% - i never mess with it.

    Any ideas?
    =====================================
    17K gallon IG freeform Pebble-Tec pool w/ raised spa/waterfall, Hayward 6020 DE filter, Tristar 1 HP circulation pump, Tristar 2.5 HP spa pump, Silencer 2hp blower, Aquarite SWG, Polaris 280 w/ booster pump, Hayward Universal H-Series 400K LPG heater, Ultrapure Ozonator 25, Aqualogic PS-8

  2. Back To Top    #2

    Re: Halogen pool lights don't turn on below a certain temperature

    I don't think that the cold would prevent the lights from coming on. I would suspect another issue. I would start by verifying power from the circuit breaker and follow the path to the light to see if power is getting to the lights. I would start wherever you have easiest access to test the power, such as at the timer.

    Note: Don't do any electrical work that you do not feel comfortable doing.

  3. Back To Top    #3

    Join Date
    Jun 2010
    Location
    Dripping Springs, TX
    Posts
    125

    Re: Halogen pool lights don't turn on below a certain temperature

    James man I hear you. I wondered myself if this was really the issue.

    It really seems to be though. As soon as the temperature warms up a bit, my lights come on on their regular schedule (they are on a timer).

    I even noticed once when I went to the control panel and turned them off/on manually, they eventually came on, and when they did, it was a slow ramp up from dim to bright, as
    if someone was slowly increasing the dimmer from a low setting.

    I have to admit, I am baffled.

    It almost has to be something mechanical, which seems bizarre.
    =====================================
    17K gallon IG freeform Pebble-Tec pool w/ raised spa/waterfall, Hayward 6020 DE filter, Tristar 1 HP circulation pump, Tristar 2.5 HP spa pump, Silencer 2hp blower, Aquarite SWG, Polaris 280 w/ booster pump, Hayward Universal H-Series 400K LPG heater, Ultrapure Ozonator 25, Aqualogic PS-8

  4. Back To Top    #4

    Re: Halogen pool lights don't turn on below a certain temperature

    I would suspect a bad dimmer.

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