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Buderus gb142 weird issue

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thutchinson58
thutchinson58 Member Posts: 2
in Domestic Hot Water
I have a buderus gb142 with a weird issue. We had some pressure issues that we figured out and then a few weeks later it stopped igniting. You can reset it constantly and it won't ignite but if you take off the big cover it will instantly ignite and work again. Any suggestions?

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  • GW
    GW Member Posts: 4,693
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    Based on your description, it seems like it’s starving for air, I would check the intake pipe.
    Gary Wilson
    Wilson Services, Inc
    Northampton, MA
    gary@wilsonph.com
  • Ironman
    Ironman Member Posts: 7,376
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    When was the heat exchanger cleaned according to the manufacturer’s instructions?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • thutchinson58
    thutchinson58 Member Posts: 2
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    I'm not really sure when it was cleaned last as we bought the house less then a year ago and I don't see any maintenance stickers 
  • Ironman
    Ironman Member Posts: 7,376
    edited October 2020
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    If the heat exchanger is not annually cleaned in accordance with the manufacturer's instructions, you can have this issue, and several others.

    It may also be as GW suggested or another problem elsewhere.

    You really need to get a tech that's properly trained on that boiler to look at it.

    Try the contractor locator above.

    Whomever you choose, make sure you tell them before coming out that you want a tech who's properly trained and experienced with that boiler.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • Big Ed_4
    Big Ed_4 Member Posts: 2,785
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    Yes , have the boiler cleaned with butcher block oil , check the air intake ,exhaust and replace the igniter . Some seals may need to be replaced . And have the burner properly adjusted

    There was an error rendering this rich post.

  • tim smith
    tim smith Member Posts: 2,752
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    I vote for restricted heat exchanger, especially if it’s been more than a couple years. Of course would check intake pipe too.

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