Search results

  1. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    ***UPDATE*** Hot water is back up and running. Thanks to @terryplumb and @ianmcd Had a local boiler repairman come out to look at it - took a lot apart to look for blockages, including the 'combination valve' - ours is a pressure relief valve to relieve excess mains pressure. Couldn't find a...
  2. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    Great, thank you. I checked the manual - it's that thing between the second stopcock (blue handle) and the expansion vessel(?). I'll ring around tomorrow to find an engineer. Thanks so much for all your help!
  3. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    Thanks for the help. Which ones are the "balanced cold water draw off" and the "combo valve"? Thanks again!
  4. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    That's correct - no flow out of the right hand valve. So what is the next step to diagnose this? And would this result in both low pressure registering on the gauge (0.6 - 0.8bar) and the lack of any water out of the hot taps. I have cold from the cold taps, but nothing at all from the hot...
  5. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    That's correct - no flow out of the right hand valve. So what is the next step to diagnose this? And would this result in both low pressure registering on the gauge (0.6 - 0.8bar) and the lack of any water out of the hot taps. I have cold from the cold taps, but nothing at all from the hot taps.
  6. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    20210210_192807 by jk1_1 posted 10 Feb 2021 at 8:14 PM I thought that the mains entered from the right side? The pipe on the right is labeled DHW Mains Cold Inlet. And definitely haven't turned off any pipes/flow.
  7. 20210210_192807

    20210210_192807

  8. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    Sorry, to be clear, no water from the hot taps - neither hot nor cold!!
  9. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    Ok, so the initial problem is no hot water. I've been through this forum, and a lot points to the low pressure on the system (.6-.8bar) so I was trying to re-pressurise it. But then found no flow through the loop (and yes, both valves were open at the same time). I have tried *gently* tapping...
  10. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    When I ask fix/tweak, I mean as a temp. solution! And is replacing it as simple as closing stopcock, replace valve, turn stopcock back on?
  11. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    Yes, that's exactly what happened, thank you. Is it possible to fix/tweak the non-return valve? And the right hand valve is where the mains enters the boiler (am I right?) - so is the water coming out of the left valve coming from the boiler itself? Finally, would this explain the lack of hot...
  12. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    Image here: https://www.diynot.com/diy/media/20210210_191008.106039/full Pretty sure mains enters far right, travels via expansion vessel, to boiler far left. Don't think freezing is the issue, as we have running cold water, and I'm pretty confident that that is the only mains entry point...
  13. 20210210_191008

    20210210_191008

  14. J

    Combi-boiler no hot water/good CH/no flow in filling loop

    20210210_191008 by jk1_1 posted 10 Feb 2021 at 7:18 PM20210210_192807 by jk1_1 posted 10 Feb 2021 at 8:14 PMI have a Heatrae Sadia Electromax Combi-boiler. CH works, but no hot water. This coincided with 2 events: a full bath of hot water the night before (may have emptied the tank), plus...
Back
Top