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Thread: Jandy LT Heater won't fire or ignite (AGS)

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    Join Date
    Jun 2015

    Jandy LT Heater won't fire or ignite (AGS)

    I have a Jandy LT heater and when I turn it on, the blower turns on and then when the lull happens and typically the gas blows and ignites, nothing happens. Just the Blower. It then flashes the AGS light. I've pulled the panel and tried troubleshooting with a multi-meter but not seeing voltage to the igniter. Any suggestions???

  2. Back To Top    #2

    Join Date
    Jun 2012
    western NY

    Re: Jandy LT Heater won't fire or ignite (AGS)

    Here is a link to a troubleshooting guide... Looks like it refers to either a pump pressure problem or a flame rectification problem. Since we do not have flame, I am going with the pump pressure to start as you need flame for the rectification problem to present itself.
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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