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  1. J

    HELP!! Hayward H400 problem w/video

    I have a 3 year old Hayward H400IDL pool heater. The mainboard was replaced 6 months ago due to ignition failure. I now have a new problem. The heater ignites and stays lit for up to 1 min then flutters for 15 to 30 seconds and shuts off. It then repeats the ignition sequence and does it all...