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Thread: Hayward H400IDL2 Gas Heater won't Ignite

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    Join Date
    Aug 2011
    Location
    Manteca Ca.
    Posts
    8

    Hayward H400IDL2 Gas Heater won't Ignite

    I have a Hayward H400IDL2 natural gas heater that is approximately 5 years old that will not ignite. When I tried to start it for the first time this season it wouldn't start at all it kept on blowing fuses. I figured out the transformer was bad replaced the transformer and the fuses, tried to start it up and the blower was bad, changed the blower and it still didnt fire. Had a service guy come out he replaced the vacuum pressure switch and it still didnt fire and he gave up! so I trouble shot it again and wound up bypassing the vent pressure switch (I know it isnt safe but i was getting irritated ), Tried to start it and it worked, but only for about 4 hrs. Then I cleaned the burner tubes and replaced the ignitor, and it wouldnt fire at all, I dont think it is getting gas now! That is where I stand with this wonderful heater! Is it possible the gas valve is no good? In the manual it is says to check the valve for a short, so I checked the terminals on the front of the valve and it isnt shorted. Does anyone have any insight on this problem, any kind of advice, ideas are greatly appreciated!!
    Thank you in advance!
    Mitty1964
    15'X48" cheapo Intex metal frame pool. 4400 gallons.
    Cartridge filter
    The only thing I could find about the pump is it says 1000 gallon filter pump.

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    Melt In The Sun's Avatar
    Join Date
    Oct 2009
    Location
    Tucson, AZ
    Posts
    3,899

    Re: Hayward H400IDL2 Gas Heater won't Ignite


    Welcome to TFP, by the way. Sorry I can't help you.
    11,200 gal, Pebble-Tec; Tristar 2-speed 1hp - Swimclear 325 ft2 cart - SWG - A & A in-floor cleaner - Heat pump. For the poolside cooking, a Yoder Wichita and a Big Steel Keg!
    TF Test Kits -- PoolMath -- Pool School
    Make each day your masterpiece. - John Wooden

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    Join Date
    Aug 2011
    Location
    Manteca Ca.
    Posts
    8

    Re: Hayward H400IDL2 Gas Heater won't Ignite

    Thanks for the welcome, at least you replied!
    15'X48" cheapo Intex metal frame pool. 4400 gallons.
    Cartridge filter
    The only thing I could find about the pump is it says 1000 gallon filter pump.

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