How to mend Vokera Boiler Water

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

Vokera mynute 28se?

my pressure on my boiler has gone?

no hot water/heating?

Error code E82?

Max pressure?

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

Max pressure?

I have a vokera 24m gas boiler ?

Boiler age?

Vokera mynute 35e fault code 08 what is problem?

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

vokera 12-48rse?

Faulty vokera compact 25?

heating system?

how to ignite voker pilot light?

How can I sort my thermostat. Code: 20059643?

Ignition failure on Vokera Vision C boiler?

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

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

how can I fix my Vokera linea 24 Combi?

Max pressure?

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

Faulty vokera boiler compact 25?

water drips from overflow?

vokera boiler not 2yrs old yet , wont work?

Vokera sorry ?

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 ?

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