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  1. P

    What "key" for this main stopcock?

    After fixing a mixer tap in the kitchen and struggling with stockcock under the sink, it occured to me that I did not know where the main external stop valve for my property was. After having a look around today, I have found it just over the boundary in next doors garden and when I lifted the...
  2. Bryan in Wyo

    Main Drain Connection Failure/Mess (cast iron and clay)

    Hello all, I have a mess and quite the project on my hands here. I am a handy guy but this is outside my comfort zone. I think my comfort zone is gonna expand after this project because i have no option to hire this out... I am hoping to get some advice and guidance during this research so...
  3. petehuws

    Mitsubishi Ecodan 8.5KW one zone gone offline and missing from main controller

    Hello Experts, hoping this is easy to understand. Last year it was no problem, but this year we seem to have lost one of our Ecodan heating zones. Zone 1, configured as Underfloor heating Zone 2, configured as Radiators. We have lost Zone 1 for the underfloor heating, zone 2 radiators and the...
  4. P

    Main 30he flashes low pressure or pump

    Hi Please help I have a problem with the boiler main 30 he flashes low pressure or pump usually if it is switched to central heating I note that sometimes central heating and hot tap water go back to normal by themselves or after turning the prv. I checked or fixed: reconditioned diverter valve...
  5. B

    Main Medway replacement

    Hi everyone, I need to replace a Main Medway Super water heater, as these are now obsolete can anyone give me a idea of a decent replacement, it serves 3 hot taps. Many thanks BigJake
  6. S

    MAIN combi ECO 30 problems. help pls.

    Morning, after some advice please. I have a MAIN combi ECO 30 , its been in for nearly 9 years. historically its randomly fired up as though you are calling for hot water – but when no tap is actuated. This would happen a few times a week and last less than a minute. Since last week I have now...
  7. Craig Chamberlain

    Water main sizing advice please

    Hi, I have recently moved to a farmhouse in central Scotland and the other day our closest neighbour accidentally burst our water main with a JCB. The main is a 1” MDPE pipe running about 500m from the water company roadside main to our farmhouse. This was installed about 20 years ago. The...
  8. H

    Shower going from hot to cold - Main Combi 24 Boiler

    Hey everyone, I'm hoping for some help/advice with my shower. I've a Main Combi 24 boiler, and my shower is from a mixer tap over the bath. When the boiler flame lights, the shower will be hot almost instantly, but a few minutes into the shower it'll go completely ice cold. I'm then soaped up...
  9. C

    Air in gas main

    Hi guys, running out of ideas for a site I'm currently working on. In brief, got a 4 year old school with air in the gas main in the science labs. For 4 years the teachers have been purging the gas in the science labs for about 10mins before they can use the bunsun burners. The next day they...
  10. P

    Main Combi HE 30 boiler

    Hi Everyone. My boiler has recently started playing up. When using the shower or hot water the boiler fires then cuts off for a couple of seconds then fires again. Resulting in Luke warm/cold water. I’m guessing it might be the heat exchanger as the boiler appears to be louder than usual. Any...
  11. P

    Main equipotential bonding to gas supply

    Hi all, electrician from the dark side looking for your views please. Background- We are working on an unusual job, bit of a mini castle converted into flats. Gas has been installed in five flats (not recently) but have never been fitted with main equipotential bonding. We’ve looked at the...
  12. M

    Running water main externally in a sleeve

    Has anyone done this? I need to get a supply from the kitchen to an unvented cylinder on the 1st floor. Only way really is out under the sink, around the sid of the building and up the wall into the airing cupboard. What's the easiest way to run this pipe in a waste pipe insulated? Cheers
  13. Atanas Peev

    Main combi compact 25

    Hello anyone know why the combi main compact the new model show 000 and fail ignite from first commissioning Thank you
  14. A

    Main combi 24 he hot water issue

    Hi Went to look at a main combi 24 he boiler. The issue was hot water would only work with the heating on. We had a look and from cold, ran the hot tap at the sink and it was going down the flow pipe. We changed the diverter and now the boiler would come on with a hw demand as normal but the...
  15. M

    Distance from gas main to water

    Does any body know what the distance between the two needs to be? I learnt it at college but cannot seem to find it now. Cheers
  16. Y

    New Water Main

    Hi All, I was hoping you guys could help answer a few questions i have. I live in a large Victorian house, with a shared lead supply. I hoping to replace this with a 25 or 32mm MDPE pipe. I have a 300l ACV Cylinder with a 50kw ACV system boiler. There is currently a 22mm pipe going from...
  17. D

    Worcester Bosch 35cdi leaking around main heat exchanger

    I'm looking for some advice please. My boiler seems to be leaking from the main heat exchanger. I've posted two photos. The first shows seepage of water from underneath the heat exchanger housing. In the second photo, I've removed the condensate trap and placed a towel to wick away the drips...
  18. J

    Main multipoint FF water heater

    Hello All Problem with the above named water heater. Red light comes on every 4-5 secs. No hot water operation. When you reset the heater the green light comes on briefly and then the red light starts doing it’s thing????? Any ideas ?
  19. S

    Vaillant Turbomax Plus 828E leak at Main Heat Exchanger connection

    The copper pipe that connects is on the LHS (view from front) and I get a small leak every other day. Do not have to top up frequently, just wipe away. Also has developed an occasional S.54 fault "delay mode due to flow temperature gradient too steep" which means the hot water runs cold with no...
  20. J

    Main Combi 30 he boiler

    Hello All I had a fault on the above boiler the 30 and 50 lights were flashing. I replaced the pcb and all was working however the customer has reported that now the 30 and 40 lights flash, this can be reset and the boiler operates but intermittently locks out with 30 and 40 lights flashing...

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