How to mend Combi Boiler Vokera

Vokera boiler on constantly. Room stat showing unknown code. ?

vokera boiler not 2yrs old yet , wont work?

heating system?

Max pressure?

Vokera Maxin 28e combi boiler, DHW runs hot and cold?

how to ignite voker pilot light?

Ignition failure on Vokera Vision C boiler?

Max pressure?

Faulty vokera compact 25?

wiring a nest heat link to a vokera 25 he compact ?

Vokera mynute 35e fault code 08 what is problem?

how can we fix our Vokera compact 29a lose presure ?

Error code E82?

timer on my vokerera excell boiler does not go round, how do i fix it?

my pressure on my boiler has gone?

how can I fix my Vokera linea 24 Combi?

Vokera sorry ?

I have a Vokera 24 that shows error code 07. can anyone help me fix it?

I have a vokera 24m gas boiler ?

Vokera mynute 28se?

rads warm up when hot water turned on vokera unica 36 he?

Faulty vokera boiler compact 25?

vokera boiler no heat but 2nd pipe from the left is red hot?

Vokera excell boiler needs topping up every couple of days ?

Max pressure?

How can I sort my thermostat. Code: 20059643?

Boiler age?

water drips from overflow?

vokera 12-48rse?

no hot water/heating?