Question about Hayward H Series Pool & Spa Heater 400k Btu Propane Gas Milivolt Ignition H400p1

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I HAVE PROBLEM WITH HEATER IS SWOING 1F IN THE SCREEN

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YOur 1f code is actually a IF code which stands for "ignition failure".
This can be caused by many things, but the most likely is either the ignitor has failed, or the flame sensor has failed.

Make sure the gas manual gas valve is open. Remove from panel so that you can see the ignitor.
Turn off power, then turn back on. After 90 seconds, the ignitor should start to glow red hot. If this is not occuring, then it is likely the ignitor or ignitor wiring.

If the ignitor does glow, then the heater ignites, but still goes off showing the IF code, then it is the flame sensor.

If the ignitor glows, and the heater does not ignite, it is likely the gas valve or ignition control.

As stated above, the ignitor is most likely.

Posted on Dec 31, 2010

  • Bob Y Apr 23, 2011

    Hi I have the IF code problem too, the ignitor glows red hot, everything sounds like it's working and when the click occurs for ignition, nothing happens. I smell the unburnt gas when this occurs too. What else can go wrong? Thanks for any ideas.

  • adam hudson
    adam hudson Apr 25, 2011

    It could be cobwebs in the gas intake manifold, or the ignition module, or the flame sensor.

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YOur 1f code is actually a IF code which stands for "ignition failure".
This can be caused by many things, but the most likely is either the ignitor has failed, or the flame sensor has failed.

Make sure the gas manual gas valve is open. Remove from panel so that you can see the ignitor.
Turn off power, then turn back on. After 90 seconds, the ignitor should start to glow red hot. If this is not occuring, then it is likely the ignitor or ignitor wiring.

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