How can I fix my Vaillant turbomax 828 ??
how do I rectify the fault as detailed below?
how to fix water pressure its down at bottom of grey part?
Water dripping from opening at top of pump?
my vaillant boiler is saying a code com on it ?
no heating water?
Vaillant vcw gb242 eh central heating problem?
No hot water, intermittent when air temp drops?
Vaillant VCW-Sine18 T3WFH Lights but then goes off after 5 Min?