vaillant ecoTEC plus boiler fault code - how to fix?
can i replace my Potterton EP2 2 way programmer with a Center EHE0200361 RF?
no heating water?
Hot water comes and goes!?
Valiant thermostat , BMU-Err ?
No hot water, intermittent when air temp drops?
Vaillant VCW-Sine18 T3WFH Lights but then goes off after 5 Min?
Valliant Eco tec 28?
Vaillant igniting issue ( domestic ) not CH?
Vaillant vcw gb242 eh central heating problem?
Vaillant Thermocompact Fault?
Vaillant ecotec 831 plus?
resetting thermostatat?
Vailliant turbo max plus 824e?
how do I rectify the fault as detailed below?