can i replace my Potterton EP2 2 way programmer with a Center EHE0200361 RF?
Vaillant condensing boiler ecoTEC plus?
my vaillant boiler is saying a code com on it ?
Vaillant vcw gb242 eh central heating problem?
Valiant thermostat , BMU-Err ?
Problem with the pressure in combi boiler?
my boiler will no work?
Vaillant VCW-Sine18 T3WFH Lights but then goes off after 5 Min?
resetting thermostatat?