One other thing! Should I still have balanced the system the way I did even though it's a manifold system rather than like a circuit?
Turn the bypass up to about 0.4 bar.thanks, the red bypass valve can me manually turned up or down between 0.1 bar and 0.5!
Yes the 22mm pipe between manifolds is very hot indeed!
Do you mean the thing with a red top? There is an air valve and a bypass within the boiler.This is what I found to be loose and a week ago I tightened it up fully! Have had all other problems ever since so I'm leaning towards air now being trapped in the system!
A seal in the ABV must be leaking. Try winding it up and down a few times to see if it clears. If not, it means a new ABV.They are both very hot to touch and they both lead to the boiler! The left is the flow, the right is the return! I've turned the red thing to 0.4 bar and there is now a constant dripping about every 15 seconds!
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