Question about Hayward 250kbtu Ng Pool Heater - Inground

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I have a hayward H250 ED2 inground pool heater. It is flashing a code H5 5F It has shut itself down. What does this mean? What should I do. Thanks Jan

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  • cats6dr May 23, 2009

    I found a manual online and it says that the HS and SF code mean that there is a problem with the temperature sensor.  I think that is correct because initially the heater fired up with no problem but we could not set the temp as we had last year.  I think we need to get the sensor replaced.  Does that make sense to you 
    Jan

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  • Master
  • 3,614 Answers

Hi there,

Hayward Pool Heater Fails to Ignite: the most common reason for this problem is insufficient gas supply. The Hayward heater LED display will show a diagnostic fault code which stands for Ignition Failure. Undetected gas pressure problems if not investigated properly may result in unnecessary replacement and servicing of your Hayward Pool Heater.

Hope this initial info helps.

Let me know for further clarifications.

Posted on May 23, 2009

  • micromaster
    micromaster May 23, 2009

    you're right!






    SF


    Temperature
    Sensor Input Failure






    HS


    Max.
    Return Water Temp. Exceeded



  • micromaster
    micromaster May 23, 2009

    Just let me know if you need help for the replacement and servicing of your Hayward Pool Heater.


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