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Thread: HL2 code displayed on Rheem gas pool heater

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    HL2 code displayed on Rheem gas pool heater

    Our Rheem gas pool heater is displaying an HL2 message and also the service light is on. What does the HL 2 message mean? Is there an easy fix?

    Thanks for your help!
    East TN
    13,000 gal San Juan Fiberglass Pool;SWG; GoldLine Pro Logic Controls
    Hayward Sand Filter; Hayward Max-Flo XL Pump;Polaris 380; Hayward ColorLogic LED
    Raypak Gas Heater

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    Re: HL2 code displayed on Rheem gas pool heater

    HL2 is an error code for High Limit #2. This error means the water in the heat exchanger is too hot. You need to check flow to the heater as well as the switch.

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    Re: HL2 code displayed on Rheem gas pool heater

    Thanks for your help! I think I will call the heater man and have him check it out. I am not sure how to check the water flow or the switch.
    East TN
    13,000 gal San Juan Fiberglass Pool;SWG; GoldLine Pro Logic Controls
    Hayward Sand Filter; Hayward Max-Flo XL Pump;Polaris 380; Hayward ColorLogic LED
    Raypak Gas Heater

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    Re: HL2 code displayed on Rheem gas pool heater

    They are really pretty simple. See if you can go on Rheem's site and get a .pdf of the manual (if you don't have one). These things are really simple, and you'll save a bunch if you can get it yourself.

    I'll try and see if I can find a link for you.

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    Re: HL2 code displayed on Rheem gas pool heater


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    Re: HL2 code displayed on Rheem gas pool heater

    Thanks so much! I will take a look and see if we can give it a try.
    East TN
    13,000 gal San Juan Fiberglass Pool;SWG; GoldLine Pro Logic Controls
    Hayward Sand Filter; Hayward Max-Flo XL Pump;Polaris 380; Hayward ColorLogic LED
    Raypak Gas Heater

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    Re: HL2 code displayed on Rheem gas pool heater

    Hope it helps. Post up the good news after you've fixed it

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