can i replace my Potterton EP2 2 way programmer with a Center EHE0200361 RF?
my vaillant boiler is saying a code com on it ?
Vaillant eco plus 531 boiler?
Vaillant igniting issue ( domestic ) not CH?
Vaillant vcw gb242 eh central heating problem?
Vaillant ecotec plus 630?
Vaillant ecomax 828/2 e water pressure sensor?
how do I rectify the fault as detailed below?
Vaillant Ecotech Plus 831 F22 fault?
Vailliant turbo max plus 824e?
No hot water, intermittent when air temp drops?
Vaillant ecotec 831 plus?
How do I fix f22 error on my Vaillent Ecotec Plus boiler?
Vaillant VCW-Sine18 T3WFH Lights but then goes off after 5 Min?
Hot water comes and goes!?
vaillant ecoTEC plus boiler fault code - how to fix?
Vaillant 828E - no hot water?
Vaillant Thermocompact Fault?
Vaillant condensing boiler ecoTEC plus?
Vaillant F22 fault?
how to fix water pressure its down at bottom of grey part?