How to mend Vokera Unica He

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

Vokera mynute 35e fault code 08 what is problem?

Max pressure?

Vokera mynute 28se?

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

Boiler age?

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

Vokera sorry ?

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

Error code E82?

how to ignite voker pilot light?

water drips from overflow?

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

Max pressure?

heating system?

Faulty vokera compact 25?

Vokera excell boiler needs topping up every couple of days ?

Ignition failure on Vokera Vision C boiler?

how can I fix my Vokera linea 24 Combi?

vokera boiler not 2yrs old yet , wont work?

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

no hot water/heating?

I have a vokera 24m gas boiler ?

vokera 12-48rse?

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

Max pressure?

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

Faulty vokera boiler compact 25?

my pressure on my boiler has gone?

How can I sort my thermostat. Code: 20059643?