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We have 36 questions about mending 'vaillant gb 242 eh' in category Heating, Home Heating Systems
Vaillant condensing boiler ecoTEC plus?
Vaillant ecotec 831 plus?
Vailliant turbo max plus 824e?
Vaillant eco plus 531 boiler?
Vaillant F22 fault?
how do I rectify the fault as detailed below?
Vaillant VCW-Sine18 T3WFH Lights but then goes off after 5 Min?
Vaillant 828E - no hot water?
Advice?