We may have found other answers which could help you.
Click here for Vaillant 824e Turbo Maxvaillant ecoTEC plus boiler fault code - how to fix?
Vaillant eco plus 531 boiler?
Vaillant F22 fault?
Vaillant condensing boiler ecoTEC plus?
how do I rectify the fault as detailed below?
Vaillant vcw gb242 eh central heating problem?