Vokera boiler on constantly. Room stat showing unknown code. ?
Ignition failure on Vokera Vision C boiler?
Max pressure?
vokera boiler not 2yrs old yet , wont work?
how can we fix our Vokera compact 29a lose presure ?
how to ignite voker pilot light?
timer on my vokerera excell boiler does not go round, how do i fix it?
vokera boiler no heat but 2nd pipe from the left is red hot?
water drips from overflow?