Right gents, update. Been back round there today. Replaced both o-rings on heating pipes f/r. Filled system and it leaks before it barely reaches .5 bar. On further inspection it appeared to be leaking from a split/pin hole in the plastic section on the underside of the burner were the pipes...
Hello chaps, first post...
Went to a job yesterday today to fix a leak in a vaillant ecotec plus 824. One of the central heating pipes was leaking from the underside of the heat exchanger. I removed the clip housing and eased the pipe out to check the rubber seal, which was fine. Replaced...