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Utica boiler 95m-200 E02 error

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sprynda
sprynda Member Posts: 5
in Gas Heating
I have a utica boiler model 95M-200. The boiler is triggering an E02 error message. The unit is about 15 years old. about 2 years ago the main heat exchanger was replaced. I have had the install company hear 3 time and my Propane provider twice. the unit has been maintained and cleaned. the boiler keeps turning off with error code e02. the flame sensor was replaced and the gas regulator was replaced. according to the technician all voltages appear to be normal. also did what utica tech support suggested. any suggestions ? thanks
sam

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  • Ironman
    Ironman Member Posts: 7,376
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    What does the manual say that E02 means?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • sprynda
    sprynda Member Posts: 5
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    failure to ignite.
  • Ironman
    Ironman Member Posts: 7,376
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    Has the igniter been replaced?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • sprynda
    sprynda Member Posts: 5
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    not sure, waiting to hear from install company
  • Ironman
    Ironman Member Posts: 7,376
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    The original burner on that boiler required an upgrade that included a new control module and pressure switches. Was that ever done?

    Look at the white tag on the module and see if it says “Wor gas”.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • sprynda
    sprynda Member Posts: 5
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    where is that tag located
  • Ironman
    Ironman Member Posts: 7,376
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    On the control module.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • 109A_5
    109A_5 Member Posts: 1,385
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    Hello @sprynda,
    All this has been verified ?



    From the manual.
    https://uticaboilers.com/wp-content/uploads/2022/02/3024.pdf

    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • sprynda
    sprynda Member Posts: 5
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    i believe that the service tech checked all that. i know the voltage reading x1-5 to ground was 3 volts. the gas pressure was 11.0 a ground wire was added from heat exchanger to ground. i will pass on to tech.

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