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Thread: Hayward Heater Keypad not working

  1. Back To Top    #1

    Join Date
    Feb 2015

    Hayward Heater Keypad not working

    I have a Hayward HD150FD heater on my spa. I set the temp and mode 5 years ago, and haven't touched the keypad since then.

    The other day, when I fired it up, I had an AO error code. Before I knew what that meant, I tired pressing all the buttons, but there was no response.
    I took care of the AO error (some critter had chewed through the vacuum hose). I was hoping that with that fixed, the keypad would work, but it doesn't.

    The heater still heats up to 104, where I originally set it, but the mode button does nothing. The up/down buttons don't do anything either, but maybe that is because I can't put it in Standby mode.
    Interestingly, when it fires up, the Standby light remains lit orange, even though it is running, and the Heat and Spa lights are on.

    Any ideas?

  2. Back To Top    #2
    Patrick_B's Avatar
    Join Date
    Jun 2011
    Midland TX

    Re: Hayward Heater Keypad not working

    Sorry I can't help, but I wanted to say welcome to TFP.

    We have a Hayward guy around and he can help you with that code most likely. He goes by HaywardPool.
    TFP Moderator
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  3. Back To Top    #3

    In the Industry

    ps0303's Avatar
    Join Date
    Jul 2011

    Re: Hayward Heater Keypad not working

    I'd start with the keypad since nothing happens when you press the buttons. The keypad attaches to the display board which could also be your issue.
    Paul A word of caution: When working with gas and electrical you might want to consider a licensed contractor. Consider the value of your life and others around you. If you would like to provide a review of the help I provided, please use the following link to leave a review. gastek - Google Search,

  4. Back To Top    #4

    In the Industry

    Hayward Pool's Avatar
    Join Date
    Oct 2014

    Re: Hayward Heater Keypad not working

    Good Day, It sounds like a keypad problem or the main board. The fact that you can not get the key pad to respond tells me a lot. I have some questions that will take some give and take. If you private message me your phone number I will take you though troubleshooting.
    Hayward Pool Tech
    80+ Years of Technologically Advanced Pool Product Manufacturing

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