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CO alarm went off at low level

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sunlight33
sunlight33 Member Posts: 378
in THE MAIN WALL
Earlier this evening the CO alarm in my garage went off. I ran down from upstairs, thinking it was probably the smoke alarm, but it's the CO alarm showing 40 ppm on its display. Okay, I thought to myself: I don't have to hold my breath. I opened the garage door, checked the boiler and found the burner was rather off at that time (exhaust pipe runs through the garage), the alarm went away after five minutes but I don't know what might have triggered it.

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  • Fred
    Fred Member Posts: 8,542
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    What do you mean by "the burner was rather off" ?
  • Paul S_3
    Paul S_3 Member Posts: 1,261
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    If a car wasnt running in the garage....i would shut the boiler down and have a professional come out to perform a combustion analysis with an electronic combustion analyzer. .
    .where are you located?
    ASM Mechanical Company
    Located in Staten Island NY
    Servicing all 5 boroughs of NYC.
    347-692-4777
    ASMMECHANICALCORP@GMAIL.COM
    ASMHVACNYC.COM
    https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company
  • sunlight33
    sunlight33 Member Posts: 378
    edited March 2016
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    I mean the boiler was not on at that time, so the pipe was not carrying flue gas. I drove my car back about half an hour prior to the alarm went off but I don't think I left the car running in the garage.
    I am in New York.
  • Fred
    Fred Member Posts: 8,542
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    Is there a standing pilot? I would do as Paul S suggests and have someone come out and check it out.
  • Paul S_3
    Paul S_3 Member Posts: 1,261
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    By nyc?....i service all 5 boroughs
    ASM Mechanical Company
    Located in Staten Island NY
    Servicing all 5 boroughs of NYC.
    347-692-4777
    ASMMECHANICALCORP@GMAIL.COM
    ASMHVACNYC.COM
    https://heatinghelp.com/find-a-contractor/detail/asm-mechanical-company
    Canucker
  • sunlight33
    sunlight33 Member Posts: 378
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    No, upstate. I have someone to contact.
    Thanks for the help.
  • SWEI
    SWEI Member Posts: 7,356
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    Is there a water heater in the garage?
  • sunlight33
    sunlight33 Member Posts: 378
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    Nope, and everything's looking normal.

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