Vaillant igniting issue ( domestic ) not CH?
Vaillant vcw gb242 eh central heating problem?
Water dripping from opening at top of pump?
No hot water, intermittent when air temp drops?
vaillant vcw gb 282gh?
vaillant ecoTEC plus boiler fault code - how to fix?
my vaillant boiler is saying a code com on it ?
Vaillant Ecotech Plus 831 F22 fault?
how do I rectify the fault as detailed below?