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Thread: Hayward H400 IF code - needs cleaning

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    Hayward H400 IF code - needs cleaning

    I have a 3 year old H400 (propane) heater that will sometimes cut out then it reignites. I have not had it cleaned. It appears it needs cleaning of the burners/gas jets. I did check wires for contact etc. I do not have a union at gas valve. Can the jets just be removed and cleaned and burners cleaned in place. Do the jets need an special thread sealants. Any advice welcome. I have the manual.

    18' x 38' vinyl liner, 28k gallons, Hayward superpump SP2615X20, Hayward DE filter DE3620,variflow valve

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    Re: Hayward H400 IF code - needs cleaning

    Most of the time you do not even have to remove the jets. You can take a pipe cleaner and insert it in the opening of each jet. Typically spider webs will be the biggest problem. Even the slightest obstruction in the jets will cause a variation in the amount of fuel getting into the burner tubes. Also it generally will be the jets that supply gas directly under the flame sensor too. Don't know why, but spider webs invariably will be in that jet. You can take the jets out and usually you will not have to put any thread tape,etc., on the threads.

    Just look into the burner tubes instead of taking them out (unless you feel you can handle getting them back in). Hopefully this helps.

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