how do I rectify the fault as detailed below?
Vaillant vcw gb242 eh central heating problem?
my vaillant boiler is saying a code com on it ?
How do I fix f22 error on my Vaillent Ecotec Plus boiler?
Vaillant Thermocompact Fault?
Problem with the pressure in combi boiler?
Vaillant VCW-Sine18 T3WFH Lights but then goes off after 5 Min?
Vaillant 828E - no hot water?
No hot water, intermittent when air temp drops?
vaillant ecoTEC plus boiler fault code - how to fix?
Why is heating on at night?
Hot water comes and goes!?