Recent content by JE-P&H

  1. J

    Worcester Greenstar 24ri - Possible airlock?

    Problem solved! - Finally got to the bottom of this Monday morning the culprit being a faulty (brand new) pump valve despite being open the gate wasn't actually opening hence the no flow. Thanks to everyone for the suggestions got there in the end!!
  2. J

    Worcester Greenstar 24ri - Possible airlock?

    Pump is wired to the boiler on these, so the boiler controls it and sequence seems fine valve opens pump runs boiler fires then over heats! All Honeywell controls, room stat, cylinder stat, timer, valves etc.
  3. J

    Worcester Greenstar 24ri - Possible airlock?

    I know I've ruled everything else out as far as I can see but Worcester technical just say it's a circulation issue so I have asked for an engineer visit as the Heat literally doesn't leave the boiler!
  4. J

    Worcester Greenstar 24ri - Possible airlock?

    Ye opened them manually, no heat and the pump heat doesn't get past the top of the boiler it basically boils itself in about 10-20secs then flow sensor cuts in! Takes a while to cool then same again!
  5. J

    Worcester Greenstar 24ri - Possible airlock?

    If the coil was a blocked surely CH and bypass would still work so boiler would still fire? No secondary return on the cylinder just your standard fittings, I didn't cap any pipes tee all the returns in together and used the CH Flow. Open to suggestions if I've mixed something up? I checked...
  6. J

    Worcester Greenstar 24ri - Possible airlock?

    Where do you mean top of the coil? I don't think it's an air lock anymore I've put mains water through the system right up to the tank and still boiler flow doesn't even get hot heat exchanger just overheats.
  7. J

    Worcester Greenstar 24ri - Possible airlock?

    Here's a picture just after I changed the pump with my pipework anyone see anything I'm out of ideas now haha!
  8. J

    Worcester Greenstar 24ri - Possible airlock?

    I would say Flow? From the picture above it pumps to the cylinder and is on the flow pipe into cylinder?
  9. J

    Worcester Greenstar 24ri - Possible airlock?

    Photo of pipework before I took cylinder out if that helps! I have labelled them left to right as they come out of the floor Boiler flow, Boiler Return, CH Return and CH Flow anyone disagree?
  10. J

    Worcester Greenstar 24ri - Possible airlock?

    Just water, I have now changed the pump still the same have also swapped Flow and Return round above the boiler temporarily to see if that does anything and no luck! Baffling me system was quite old fully pumped system before but had no motorised valves etc just a Damfoss mixing valve...
  11. J

    Worcester Greenstar 24ri - Possible airlock?

    Still no luck, drained everything including the boiler installed 2 AAV above the boiler shut off a valve each side and tried to pull an air lock through any other suggestions?
  12. J

    Worcester Greenstar 24ri - Possible airlock?

    Ye it's typical majority of installs have a filter but not this one! Didn't think of lockshield gate valves good alternative thanks!
  13. J

    Worcester Greenstar 24ri - Possible airlock?

    I Quote them as optional customer opted out, not my choice but what can you do!
  14. J

    Worcester Greenstar 24ri - Possible airlock?

    Ye same I was thinking tomorrow drain it down put lever valve on flow and one on return. Then mains water through the drain off isolating one side at a time to try and push it through but if that doesn't work I'm stuck haha!
  15. J

    Worcester Greenstar 24ri - Possible airlock?

    About 10seconds, fires up full then goes low, then out as it overheats. Flow pipe goes red hot above boiler and return gets hot but it doesn't loop, the pipes just get hot off the boiler if that makes sense!

Newest Plumbing Threads

Back
Top