VAILLANT ECOMAX 615 HELP
- Thread starter COMMMON
- Start date
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namsag
Are you sure there is enough heat getting into it in the first place, is enough gas getting to it
hi again ive now drained down fitted vent pipe on valve and drops filled slowey bleed rad operated p0 fired boiler no probs flows and return achieving temp ok but still wont flow off main heating loop to the rads or drop downstairs any ideas
Off on a tangent here, you didn't fit this to replace an old bbu or gravity primary boiler did you? If so there could be an undiscovered dumbball anti gravity valve that is either stuck, or your flow is now in the opposite direction that it was installed for. If in doubt you need to check existing pipe work carefully above where old boiler used to be (in 22mm pipe work).
If not ignore me
If not ignore me
it replaced an old back boiler the 28 gravity flow and return was removed and the existing heating circuit was used and join to the boiler in 22mm i can be 100 percent that there is no dumbell valve ive noticed that the f&r heats up fine as it runs across the landing and is new pipe work but just wont flow down drops or to most of the rads ill try tommorrow shutting all rads and opening the 1 drop to see if i can get heat ,it just sounds like theres not enough flow running around the circuit
tony ive shut all rads and close the bypass and just opened the one drop the heat travels half way down and thats it plus opened the vent i put in to see if there is an air lock but no joy then ive shut that drop of and opened onther drop same result the pipe just dont seem to have the flow to push water down ,you can hear it going around the main cuircuit but no where else i can get a couple of the upstairs rad to heat but it takes along time ,i havent balenced them yet as i cant even get the heat to flow yet ,im still thinking it may need another pump to aid the heating side .mmmmmmm
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namsag
Have not by any chance used a slip tee or even faulty tee that lets pipe in too far thus blanking off
Select one of the none working rads to work with, remove this rad, over pressurise the boiler to nearly 3 bar, leave filling loop open to keep pressure there, then in turn open flow & return valves on bare pipe work into bucket to see if you get any debris or air locks come out 
mmmmmmmmmmm could nt really say i dont think so as i would have notice it when connecting to be honest never really come across that got me think in now m8 but the heating main circuit flow s aoung quick it just the other runs to the rads that dont really get there and they were all fine on the old circuit i could underdstand if it was just 1 rad but its the lot is there any other way to vent the boiler other than using po and the aav as strting it up theres still loads of air in there maybe because it where its sitted in the loft
has any of you lot installed this boiler in a loft
this po programme do you just let this programme run till it finishes and the heating fires up as thats what i have done but even after there still sounds like theres air knocking round it
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