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EOLO Star 24 3 E Gas Oven - Error 11: Exhaust Pressure Switch Issue, Open White Lid Solution

omaxp 35349 11
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  • #1 16790736
    omaxp
    Level 10  
    Hello everyone in this forum, I am looking for the answer to my question.

    My furnace is EOLO Star 24 3 E, for some time error 11 (exhaust pressure switch) has been constantly popping up.
    At the top of the boiler there is a white lid visible in the picture and now when I unscrew it, the error is not shown to me, you can only hear it draws air and the stove works properly without any errors.

    Please tell me can this flip be open ?? The heating season is starting and I would not like to fly through this open flap. :cry: :cry:
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  • Helpful post
    #2 16791369
    Piotr2608

    Level 41  
    If you don't want to fly into the air, call someone who will repair the furnace and fix it for you.
    Not enough people have died from the silent killer called carbon monoxide.
    This cap should be screwed on. You can already guess that there is a lack of air in the room.
    All grilles work? Chimney sweep review was? If so, call an oven specialist.
  • #3 16791551
    omaxp
    Level 10  
    Thank you for the answer, you probably saved me, I closed the cap today and error 11 came back.

    The chimney sweep was and told me that I still have a grille, but I have to make holes in the door. I didn't cover the holes because it probably won't fix my oven.

    My stove is in a very small bathroom and is 5 years old and serviced.

    I read that there may be a blocked air intake or this prosestat is broken, can I do something myself today to fix it without calling for a gas supply ??
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  • #4 16793106
    irus.m
    Heating systems specialist  
    Eolo is a boiler with a closed turbo chamber. The combustion air is drawn in from the outside by an air / flue pipe, so room ventilation has nothing to do with it.

    Check the flue pipe for any bird or other debris. Same with the air intake. and tightness of these wires.
    If everything is unobstructed, check the switching pressure of the pressure switch - I have never happened to fail in this model, but who knows?
    It happened that the fan motor lost its parameters and gave too low pressure, which resulted in the operation of the pressure switch.
    best regards
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  • #5 16793108
    kasprzyk
    Electrician specialist  
    When was the last boiler inspection / cleaning?
    You may have a problem with the chimney, fan (lack of efficiency, dirty orifice), the last one can be a pressure switch.
    Maybe it will end up cleaning the fan itself, but if you have no experience in this, order it to the right person / company, especially since you will not write the protocol yourself, unless you have gas permissions?
  • #6 16802818
    omaxp
    Level 10  
    Gentlemen, I made an appointment with the gas supplier and let me know what the problem was.
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  • #7 16802979
    kasprzyk
    Electrician specialist  
    It is better if you have an appointment with a boiler serviceman, may "gasworks" mean the same to you ;)
  • #8 16945971
    tomlom
    Level 11  
    Hello. And what was the reason? I have the same problem
  • #9 16961037
    omaxp
    Level 10  
    Gazownik said that the flue gas pressure switch was to be replaced, so I ordered it and I am waiting for it to be installed. I'll let you know if it helped
  • #10 17267860
    omaxp
    Level 10  
    Replacement of the exhaust pressure switch helped and the furnace runs without error 11
  • #11 19979142
    piotrswietrecki
    Level 1  
    How much did this action cost?
  • #12 19979162
    omaxp
    Level 10  
    For those times, PLN 200 + PLN 100 for the job,
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Topic summary

The EOLO Star 24 3 E gas oven is experiencing Error 11, indicating an exhaust pressure switch issue. The user noted that removing a white lid temporarily resolves the error, but concerns about safety arise due to potential carbon monoxide risks. Responses suggest checking the flue pipe and air intake for blockages, ensuring proper ventilation, and considering the condition of the fan motor and pressure switch. A gas technician was consulted, leading to the diagnosis that the exhaust pressure switch needed replacement, which ultimately resolved the issue. The cost for the replacement and service was approximately PLN 300.
Summary generated by the language model.
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