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  1. C

    Vaillant Fault Code 08

    Thanks very much for taking a look and posting a response. I will take up the matter with Vaillant directly.
  2. C

    Vaillant Fault Code 08

    The details on the combi are VHR 18-22C.
  3. C

    Vaillant Fault Code 08

    I have a Vaillant 18-22 C its about 4 years old and has been working fine until now! The fault code I am getting is F08. When I get this code I press the reset button and it works again - only to fail again later. I would like to know what the fault code means and what are the likely sets to...
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