Viessmann service problems smelly...

Discussion in 'Plumbing and Central Heating' started by Tony24601, 15 Jan 2021.

  1. Tony24601


    15 Jan 2021
    Thanks Received:
    United Kingdom
    Hi, you people seems very knowledgeable so though I would ask a question.

    We had our viessmann boiler serviced about two weeks ago. They said all is fine after the service and left. Since then there is a very small drip from the pressure valve underneath (I think that is what it is called). There is also a smell of fish coming from underneath the boiler. This was faint at first but is now getting worse.

    After they finished as well the pressure when they left was nearly 2 bar and now fluctuates from 1.5 to 2.

    Have they done something to mess it up? The fishy smell is the worse part!!!
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    United Kingdom

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