no heating water?
how to fix water pressure its down at bottom of grey part?
Vaillant vcw gb242 eh central heating problem?
No hot water, intermittent when air temp drops?
Water dripping from opening at top of pump?
Vaillant 630 error f 85?
Vaillant Thermocompact Fault?
Vaillant VCW-Sine18 T3WFH Lights but then goes off after 5 Min?
how do I rectify the fault as detailed below?