Thank you for your reply. Dilalio to be honestly speakjng other end of of the connector face to garden( it was dark and thought not important) I'll do it today.
@CBW thanks for reply. I forgot to mention when i press i it show S7(Pump overrun). I have been trying to find a parts if boiler required but no luck finding any answer.
Combi Boiler: The problem Iam going thru with Vaillant TurboMax Plus 824E My issues started 4 weeks back, problems with the boiler cutting out after a few minutes. Hot water perfectly fine . The problem we are having is with the central heating side. The boiler starts up and makes the usual...