How to mend Boiler Vokera Gas Valve

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

Faulty vokera compact 25?

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

heating system?

How can I sort my thermostat. Code: 20059643?

Faulty vokera boiler compact 25?

Max pressure?

water drips from overflow?

vokera 12-48rse?

Max pressure?

Boiler age?

no hot water/heating?

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

my pressure on my boiler has gone?

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

Error code E82?

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

Ignition failure on Vokera Vision C boiler?

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

Vokera sorry ?

I have a vokera 24m gas boiler ?

how to ignite voker pilot light?

how can I fix my Vokera linea 24 Combi?

Vokera mynute 28se?

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

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

Vokera excell boiler needs topping up every couple of days ?

Max pressure?

vokera boiler not 2yrs old yet , wont work?

Vokera mynute 35e fault code 08 what is problem?