timer on my vokerera excell boiler does not go round, how do i fix it?
wiring a nest heat link to a vokera 25 he compact ?
heating system?
How can I sort my thermostat. Code: 20059643?
Vokera boiler on constantly. Room stat showing unknown code. ?
Vokera sorry ?
vokera boiler not 2yrs old yet , wont work?
how can we fix our Vokera compact 29a lose presure ?
Max pressure?
Vokera excell boiler needs topping up every couple of days ?
how to ignite voker pilot light?
Error code E82?