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    400BTU Hayward Heater not coming on…just replaced display & control boards

    Well, i went to the heater and hit spa and since then, the heater has been working fine. If it changes back, I will proceed w the referenced troubleshooting. Thank you very much for your assistance!
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    400BTU Hayward Heater not coming on…just replaced display & control boards

    Good Morning, I now have to go out of town and spent the rest of yesterday taking wife to airport. The second i get back (Wed prob), i will get right back on this. Thanks again James !!
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    400BTU Hayward Heater not coming on…just replaced display & control boards

    That’s great James. Thanks. The first video is replacing the pressure switch, and second is testing the micro limit switch. It would seem to test the micro limit switch first by pulling both terminals and connecting them w a piece of copper eire. If Lo goes away, then that’s it, if the heater...
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    400BTU Hayward Heater not coming on…just replaced display & control boards

    Ok, thanks…Is there a way to test the pressure switch? W a washer pressure switch, If you blow into it, you can hear it click when the pressure meets the min pressure.
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    400BTU Hayward Heater not coming on…just replaced display & control boards

    That’s ok Mike, thanks. James, does going to the heater keypad, then using mode button from Standby to SPA, then at main panel hit HEATER and it comes on, change your trouble shooting path? The suction/returns were already in SPA Mode snd FILTER PUMP was at 2933 RPM. Once in SPA MODE, fired...
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    400BTU Hayward Heater not coming on…just replaced display & control boards

    I’ll Ck and post back mike, thx Ok, i went to keypad snd used mode button to change to spa,,,it stated bO b4 i did that. Once in spa mode, i turned on heater and it fired up w the normal delay time / working fine now From the inside remote or service prologic panel, if i put in spa mode, pump...
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    400BTU Hayward Heater not coming on…just replaced display & control boards

    Well, just replaced the 2 boards for the infamous CE error and afterwards, everything worked fine. See thread link below. I set into bO (bypass operation) and heater worked fine again. I just tried running it and nothing happens at all. It says on display as shown in pic. What do I need to...
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    [I now have all the new heater parts] Is this new heater board part defective?

    Thanks Super I also replaced the keypad too. I still think the other one was ok, but ordered it about 7-8 Mo’s ago when i was troubleshooting and forgot to return it. There was also a lot of debris in the heater from my nbors palm trees that i vacuumed out. But, they froze in our big freeze...
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    Ignition Control Board Part Question? Part # FDXLICB1930 Kit

    Done my friend / pretty EZ…wish all my TFP buds were close by so you could all come over for food & beverage !!! Thanks again !!!
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    Ignition Control Board Part Question? Part # FDXLICB1930 Kit

    This is great James...thank you. That "bo" mode is not what I have seen and that's the problem...it's a local or at the heater operations mode. I will start the process above and see if I can get it in 'bo" mode and post back - thanks again !!
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    Ignition Control Board Part Question? Part # FDXLICB1930 Kit

    Pls send link to repurposed satellite / LOL Thank you Paul for the explanations. Ok, I have another problem. After a zoom meeting, I came outside and my heater was running - I did not initiate it, as I have traditionally done. The heater Icon lit light was not displayed on my in-home...
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    Ignition Control Board Part Question? Part # FDXLICB1930 Kit

    Thanks Allen & James. Yes, since it's wired 240V, they left the 120V terminal inside the unit. On the plug, that was awesome James that you pulled a previous pic of my heater/piping area and marked it w a red dot...talk about customer service :) As mentioned in post 1, I did not see any...
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    Ignition Control Board Part Question? Part # FDXLICB1930 Kit

    Heater is working fine now…didn’t see any burned out or bad looking components on either board ? Am i missing something? Did find one 120v terminal plug that was not being used (pic 1) and a plug (pic 2). What are these 2 parts for?
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    Ignition Control Board Part Question? Part # FDXLICB1930 Kit

    Getting ready to swap out the control panel board and display board. The display board is EZ-PZ. Based on enclosed pic, what is the white plastic piece at 9 O’clock? Also, besides just following common sense on plug, terminals & wiring swap/outs, are there any steps i need to be aware of to...
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    [I now have all the new heater parts] Is this new heater board part defective?

    I received both the Integrated control Board and Display Board for my Hayward 400BTU NG Heater so I can fixed the CE error. Are there any special things I need to do or watch out for while replacing these parts, or "tricks of the trade"? Will, of course turn off power, and there should be no...
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    Algae blooming nearly weekly. I can’t afford the chlorine anymore

    One of the biggest problems w Algae blooms is bad chemistries of ineffective sanitation of CL w too high CYA levels. Using CL Tablets way too long will kill CL efficacy, thus algae, even if you use 5-7 bottles of bkeach. High pH’s also are an issue and promote algae growth over 8.4 i helped...
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    a new pool plaster job question

    It seems to have matched but i did not see it when it was just completed. I saw pool after it was filled w water. Since install I’ve helped them on adding Chem’s when they’re OOTown.
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    [I now have all the new heater parts] Is this new heater board part defective?

    Thank you very much. I will give you an update when i tap into it this weekend.
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    [I now have all the new heater parts] Is this new heater board part defective?

    Thanks for the explanation. Where is the area or areas of the greatest water intrusion? Is it the display screen where the four screws are located ? Or, is it where the two halves of the heater casing joins? There’s also the vents where NG Combustion/heat exits?
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    [I now have all the new heater parts] Is this new heater board part defective?

    I might Super. What are you trying to accomplish? To restore the board so when yours dies too, you have a backup? 😀
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    [I now have all the new heater parts] Is this new heater board part defective?

    Great, thank you! Are there specific instructions on how & where to apply the material w absolute do’s & dont’s? I have read numerous threads on the Hayward CE error and boards shorting out very quickly after replacing them w in 1-2 yrs. Over 95% of the issues were always correlated w prior...
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    [I now have all the new heater parts] Is this new heater board part defective?

    Thank you very much Mschutzer…that is great news! Excellent to learn something new. Question: Can I purchase the product that performs the costing and install on another processor board that does not have the components that burn out ? Thx
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    [I now have all the new heater parts] Is this new heater board part defective?

    This is exactly why i returned this board 4-5 Mo’s ago bc of the same bubbling / has anyone else ordered a display board for the Hayward 400K BTU heater and have the same issue? thanks Allen tstex
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    [I now have all the new heater parts] Is this new heater board part defective?

    Hello to all, Just received a heater display board for Hayward’s famous CE error. Upon inspection, noticed there’s a distinct raised area that’s “bubbled” and still seems to be soft. (See arrow that shows the start of the bubbled area). The portion lower of this area is both flat and dry...