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  1. S

    Viessmann 100 Combi WB1A flue melted

    To the person who has sent me a message, Your settings will not allow me to answer you as I am not showing as your friend :cry: SD 8)
  2. S

    Viessmann 100 Combi WB1A flue melted

    mystery man, I do know full well what poor circulation is, thank you, but after speaking to tech support and them confirming my thoughts, this boiler has more than one problem. Standard pipe has been installed which is sucking in air, causing debris in system - issue 1. condensate pipe too...
  3. S

    Viessmann 100 Combi WB1A flue melted

    Have applied for access to CC
  4. S

    Viessmann 100 Combi WB1A flue melted

    it cuts out at about 88 degrees but gets to this point in seconds, have checked & water in HE.
  5. S

    Viessmann 100 Combi WB1A flue melted

    sorry no pics. history: called out to F4 fault -ignition problems, changed to new black spark generator with new PCB & ignition electrode. this cleared F4 but then thing was overheating rapidly, checked black flexi's from HE and all crispy for a sealed system? looked at Hep2o pipework &...
  6. S

    Viessmann 100 Combi WB1A flue melted

    Hi, Have any other engineers come across or heard of the flue connection on top of the boiler casing melting (and not by using a blowtorch for any comedians :-)) for this early model of boiler? SD 8)
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