How to mend Vokera Linear 24/28

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

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

Ignition failure on Vokera Vision C boiler?

Error code E82?

vokera boiler not 2yrs old yet , wont work?

my pressure on my boiler has gone?

Max pressure?

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

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

I have a vokera 24m gas boiler ?

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

Vokera mynute 35e fault code 08 what is problem?

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

Max pressure?

Vokera mynute 28se?

how to ignite voker pilot light?

how can I fix my Vokera linea 24 Combi?

Max pressure?

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

How can I sort my thermostat. Code: 20059643?

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

vokera 12-48rse?

Vokera excell boiler needs topping up every couple of days ?

Faulty vokera compact 25?

Vokera sorry ?

no hot water/heating?

heating system?

water drips from overflow?

Boiler age?

Faulty vokera boiler compact 25?