Recent content by BFS

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    Vaillant ecoTEC 438 missing fault codes

    Many thanks dangermouse Your info for secret code display works fine but now I have spent some time with the manual I see that Vaillant offer a PC link to the boiler. It is the vrDIALOG 810/2 Vaillant say it " is intended for heating engineers and ambitious owners " I am not quite...
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    Vaillant ecoTEC 438 missing fault codes

    Hi I have the ecoTEC 438 and it seems fine. I am trying to display d.80 which is "Heating operating hours" but when scrolling through the first diagnostic d codes it jumps from 76 to 90 ie no 80, 82, 83, 84 etc. Can anybody through some light on this. Thanks BFS
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    Honeywell AQ6000 Control System

    Your posts were very useful♦. Can boilerman2 or any other member advise where pdf User Manual for the AQ6000 is available. Thanks BFS
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