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  1. Inverness

    Main pressure water sizing

    if I have a prv already on my water main supply as it's great pressure. Would there be much difference if I installed a 32mm alkathene pipe compared to 25mm alkathene pipe?
  2. Inverness

    New water main insulation

    Hi folks, just bought a old cottage and found out there is high level of hydrocarbon which from previous years has seeped its way through the alkethene. So I am re routing the a new alkathene barrier pipe into another part of the cottage but I have a problem a bout a foot away from building...
  3. C

    Combi boiler: Main 30W or Potterton 28 Gold Boiler?

    Hello Members, I'd like some advice on which boiler to select between Main 30Kw and Potterton 28 Gold boiler. This is for a 2 bed 2 bath flat. Currently have an old worcester boiler that needs to be replaced. Its a rented property. Price for Main 30 Combi incl standard Flu and clock £700...
    • Chili G
    • Thread
    • boiler combi combi boiler main potterton
    • Replies: 3
    • Forum: Boilers
  4. S

    Really loud humming sound from "main Boiler"

    Happens about 20 mins after heating is turned on. attached is a video of it happening.
  5. J

    Tips for Main water heater service

    Hi all, I'm due to service my first Main water heater next week. I haven't taken one apart before, so I'm a bit apprehensive. The boiler is two years old, but the flame picture has a yellow tinge, so a good clean is in order. Most of it is straightforward enough - until it comes to the funny...
  6. D

    old gas main advice homeowner

    Hi guys can you take a look at this for me. I have an old gas main under my stairs which i assume is redundant. As i have a gas main that is feeding the property in my front room. I want to cut the old redundant pipe off flush with the floor but am not sure if its still live and just capped...
  7. A

    Combi Not Working - Main Combi 30 HE

    My boiler stopped working yesterday. After leaving it off for a while it worked all evening and this morning. Since then though it has stopped working again. I left it off for about an hour and as the house is now getting cold I just powered it up again. It came on for about 5 minutes and...
  8. V

    Main Combi HE needing high flow rate to trigger DHW

    Hi everyone - not been on here in ages, but know someone will have some sound advice :-) My Mother has just had her Main Combi 30 HE serviced by her regular guy - Expansion vessel needed recharging and all seem well but after he left I found there was no hot water unless the taps were turned...
  9. W

    power of a burst main.

    Still causing traffic chaos, down the road from me.. Burst Derby water main 'sounded like a bomb' - BBC News
  10. ShaunCorbs

    main 30he

    any done much with these as got two in series in a pub readings im having doubts about propane (lpg) o2: 11.3% co2: 6.87 Co: 0ppm Ratio: 0.0000 eff: 88.6% Ex Air 117% Draught: -0.260 manual doesnt list any spec regarding readings ex air im sure is too high am i missing something
  11. I

    Main Mersey Water Heater not lighting on hot water

    I was originally called to this as the pilot was going out. I changed tthermocouple and then the boiler would not light the burner when the hot tap was switched on. I suspected the diaphragm. This was ok, but on checking the gas valve below the burner. Water had leaked into it from the...
    • ianfoster
    • Thread
    • heater hot water main water
    • Replies: 4
    • Forum: Bathroom Advice
  12. N

    Best price for Main eco elite 30 combi

    Need to sort a supplier for the lower end of the scale for something like this..
  13. A

    Waste pipe to main down pipe

    hello every one, newby here, I've done a bit of DIY plumbing in the past (Trained Aircraft Engineer so use to hydraulic and pneumatic systems) and have a question relating to bathroom waste water going down the main down pipe. At present the waste water pipe to the main down pipe runs above the...
  14. A

    Main eco elite losing pressure

    Loses pressure when ch off. Won't fill up to more than 2bar(not supposed to be that high anyway I know). Drips from prv outlet. Please help.
  15. V

    glow worm hxi 30 boiler f9 fault code, what it means blown fuse on pcb main board

    glow worm hxi30 boiler f9 fault code. no low water pressure switch on this boiler.and blown fuse second on pcb (does tis mean board gone?) main board pump external to boiler. grundfos 25-80 slight history of job, arrived to fit dual fuel cooker gas hob electric oven. fitted connect l.N.E to...
    • vic66
    • Thread
    • boiler fault glow main worm
    • Replies: 1
    • Forum: Boilers
  16. jonnyswamp

    Main to a Duotec

    Can an existing flue from a Main 24he be used on a new Duotec I know the position is different, but this isn't an issue BTW, flue is good Sec hex leaked condense on to primary and rotted it, £500 + for both hexs plus labour New boiler time
  17. J

    How to repressurise Main 24HE Combi Boiler?

    Hi guys, I have been bleeding my radiators due to a small airlock that was present and the boiler pressure has subsequently dropped down. Looking underneath, I am unsure as to how to re-pressurise, doesn't seem to have the fittings as described in the manual. I have the braided filling loop...
    • JoshWebbo
    • Thread
    • boiler combi combi boiler main
    • Replies: 9
    • Forum: Boilers
  18. C

    connecting to outside main

    got to connect up to old steel pipe, it looks like 3/4 pipe to me. what is the best option to connect to? copper? plastic? any help would be great its being buried too
  19. S

    Glow Worm 30cxi - Main PCB blowing, any advice?

    Good Morning Everyone, I have a Glow Worm 30cxi Condensing Combi Boiler. Last week, the main pcb died. I got the board replaced (4000124180). Boiler came back on, happy days. I did notice that the water was nowhere near as hot as it should be and been advised the Plate to Plate Heat Exchanger...
  20. Hobo128

    Main combi 30 he

    Job tonight Went to see said boiler that was not firing. I reset the boiler and pump runs micro switch makes but fan does not run and boiler doesn't fire. It flashes flame symbol and fan symbol. I have checked for 240 at fan which I'm not getting and 240v from pcb at fan harness but 0v . I...
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