How to mend Vokera Linea 28

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

I have a vokera 24m gas boiler ?

my pressure on my boiler has gone?

Ignition failure on Vokera Vision C boiler?

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

Vokera mynute 28se?

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

vokera boiler not 2yrs old yet , wont work?

heating system?

how can I fix my Vokera linea 24 Combi?

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

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

Faulty vokera compact 25?

Error code E82?

How can I sort my thermostat. Code: 20059643?

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

how to ignite voker pilot light?

Max pressure?

Max pressure?

vokera 12-48rse?

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

Faulty vokera boiler compact 25?

Vokera excell boiler needs topping up every couple of days ?

Vokera sorry ?

Max pressure?

water drips from overflow?

Boiler age?

Vokera mynute 35e fault code 08 what is problem?

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

no hot water/heating?