Question about Pentair Minimax NT Heater

1 Answer

Heater ignites but then goes out a few seconds later

This heater has been a lemon from the start, and I am tired of calling for repair. Either it has to go (or I do) or I have to learn how to fix it myself.

Can you help?

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  • 4 more comments 
  • dschoendorfe Jun 22, 2009

    Heater starts up normally.



    When I press "Spa" or "Pool" the blower starts in a few seconds.



    Then 30 seconds or so later the LED next to "Heater" lights up and the heater ignights. I can smell the gas at first and I hear it light and I can feel the exhaust start to get hot. But then after 15 seconds the LED next to "Heater" gos off and the heater dies. The blower stays on.



    This repeats over and over and over. After a few hours the spa gets a couple degrees warmer.



  • dschoendorfe Jun 22, 2009

    I am not sure how to do this with a pipe cleaner. What I have done before is take my air compressor out and blow lots of air through what I believe is the burners. If you do not htink this is adequate can you give me details on how to do it with a pipe cleaner?



  • dschoendorfe Jun 22, 2009

    Would you please provide instructions on how to clean the orifices with a pipe cleaner? The manual does not provide this detail.

  • dschoendorfe Jun 22, 2009

    These instructions on the link you provide are not very useful. I know the repair guy came to clean the orifices while the heater was under warranty and it did not take him long at all. Your link suggests that I have to pretty much disassemble the whole unit. Do you have anything better?



  • dschoendorfe Jun 24, 2009

    Sorry, by the time I get home from work it is too dark. I must wait for Saturday to try to clean the orifices. I will let you know how that goes.

  • dschoendorfe Jun 28, 2009

    Your advice was useful. The orifices on this heater are very difficult to clean. I was able to get a pin through them. IT works now. Thanks. I love this service!

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  • 133 Answers

Dear Dschoendorfe,
Could you please explain the sequence of events that occur after you switch on the Heater.. What do you see or hear? Any indicators that come on and go off?.. Any errors that flash?.. Any gas smell? etc.. That would help me assist you better.
Waiting for your response.

Regards,
Srinivas.

Posted on Jun 22, 2009

  • 8 more comments 
  • Srinivas Dhulipala
    Srinivas Dhulipala Jun 22, 2009

    Forgot to add this .. You might want to clean the orifice, you will need to use a pipe cleaner to do that or else you will have to remove them and clean.

    Let me know if that helps.



    Regards,

    Srinivas

  • Srinivas Dhulipala
    Srinivas Dhulipala Jun 22, 2009

    Did you try cleaning the orifice as suggested?

  • Srinivas Dhulipala
    Srinivas Dhulipala Jun 22, 2009

    Try cleaning the orifice and also check flame sensor for any accumulated stuff .. clean it with a little sand cloth.

    Let me know how it goes.



    Regards,

    Srinivas

  • Srinivas Dhulipala
    Srinivas Dhulipala Jun 22, 2009

    Do you see gas coming out of all the orifice after cleaning with the compressor? .. if yes then probably this is not the cause ..

  • Srinivas Dhulipala
    Srinivas Dhulipala Jun 22, 2009

    Hi,

    This might not be exact setup for you.. However this should give you a fair idea about how it is done .. Please go through this link..

    http://ww2.bluerhino.com/br/Uniflame/pdf...



    Regards,

    Srinivas

  • Srinivas Dhulipala
    Srinivas Dhulipala Jun 22, 2009

    Hi,
    I understand that the link I sent was not related however it was just for showing on how one can clean the orifice. I did not mean that you need to rip apart all the spares :) .. Sorry if I conveyed that message to you.
    I would check if I have a document to address the exact product .. just give me an hour. Hope I am not asking for too much..

    Regards,
    Srinivas


  • Srinivas Dhulipala
    Srinivas Dhulipala Jun 22, 2009

    While I search for the exact document .. could you please try doing the following..

    There is a gap where Orifice / nozzle meets the burner.. through the gap could you please try cleaning the nozzle with the bent nozzle cleaning pin? That way you will not have to open the burner assembly to reach orifice.

    Regards,
    Srinivas.


  • Srinivas Dhulipala
    Srinivas Dhulipala Jun 22, 2009


    I tried searching for the document however could not find any .. so I tried to create one of my own ..... apologies for my crude drawing .. Hope it makes sense for you.


    Please let me know in case you still do not understand the instructions.

    Regards,
    Srinivas


  • Srinivas Dhulipala
    Srinivas Dhulipala Jun 24, 2009

    Hi,

    Any updates? Waiting for your response..



    Thanks and Regards,

    Srinivas

  • Srinivas Dhulipala
    Srinivas Dhulipala Jun 24, 2009

    Sounds good :)



    Regards,

    Srinivas

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