Vokera boiler on constantly. Room stat showing unknown code. ?
my pressure on my boiler has gone?
no hot water/heating?
rads warm up when hot water turned on vokera unica 36 he?
how to ignite voker pilot light?
Vokera sorry ?
Max pressure?
How can I sort my thermostat. Code: 20059643?
vokera boiler not 2yrs old yet , wont work?