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  1. S

    Main water valve, cannot find it

    Hi there, I have just bought a flat in an old tenement building in Edinburgh. I was trying to close the cold and hot water for the tap in the kitchen so i searched underneath the sink, but there are no valves attached to the two pipes that go in the tap. I have followed the pipes and they go...
  2. I

    AFTER MAIN WATER FILTER INSTALLATION PRESSURE GOING DOWN

    Hi Everyone i just installed to plumber main water pipe water filter system. But right now pressure goes down more than %60 and hot water not reach to shower. What is the solutions for it except take out of course :) Thanks
  3. A

    Main 24 he combi central heating pressure diffrential valve issue

    im a Gsr and having issues understanding why central heating pressure differential pin does not come up when pump is on on both hot water and heating side. Have change diverter valve and cleaned sensing pipes and replace plate heat exchanger. Having spent time I realised by filling up pressure...
    • Azz
    • Thread
    • central central heating combi heating main pressure valve
    • Replies: 3
    • Forum: Central Heating Forum
  4. R

    Main Combi 30 HE Pump Constantly Running

    Main Combi 30 HE when cold, set central heating to on, boiler fires and flames for a few seconds, flame goes out but pump continues to run. If I turn hot water on then HW operates and feeds through, stop HW and pump still running. Is this likely to be a pump issue or a PCB issue? Was working...
  5. S

    Main 12 HE (discontinued) - Air Proving Lockout

    Hi, 10-12 year old Main 12 HE (similar/same to Baxi & Potterton) boiler feeding CH and indirect cylinder. Last night, gone midnight, prep for bed and realised no hot water. Checked the boiler - and this indicates via three front-panel LEDs (On/Off/Off) a "Air Proving LOCKOUT", see...
  6. S

    Ideal logic main heat exchangers

    Why are these still leaking on recent boilers. Had a call today from a new customer to look at one of his renters, for frequent pressure loss. He had a logic plus 35 installed in 2017( not by me). I whipped the cover off and the trap had the usual white floating fog, consistent with the...
    • Sharp Point
    • Thread
    • heat ideal ideal logic logic main
    • Replies: 8
    • Forum: UK Plumbers Forums
  7. C

    How to safely isolate Main Combi 24 HE Boiler

    Hello, I'm a new flat-owner and plumbing novice. I've never had a combi boiler before. I need to change the cartridge in my shower-room tap (a single lever mixer), which has started leaking. I've done some investigating and so far: 1. It seems that this tap is on another cold water line to...
  8. J

    Boiler Heating too quickly (MAIN combi 30 eco)

    Hello Everyone, I'm just looking to get some advice please. I've had my boiler installed about 4 years ago (MAIN Combi eco 30 - MAIN being a subdivision of Baxi), and it has just started giving me some problems in the last couple of years. Recently the pressure was constantly dropping as the...
  9. S

    Main HE12 leak and humming

    check this out. This is what you can see through the pilot light hole when the boiler humms. It's so loud and shuts itself down when it happens I have to reset it. Also it's leaking from the heat exchanger.
  10. M

    main 30 eco combi boiler

    hi i have a main 30 eco boiler it seems to be stuck calling for hot water all the time not switching to central heating or going in stand by mode can any one help or have had this kind of issue before
  11. R

    Flexible hose to main supply

    The main stopcock in my house (22mm - under the sink) has, it seems, at some point become stiff and unusable. This original stopcock has been left "open" and a new stopcock (15mm) has been fitted with the onward connection to the 15mm copper house supply pipework being made in 15mm braided...
  12. phil hair

    main combi 30 eco diverter valve

    hi, i have a main combi 30 eco that has heating but no hot water. I changed the diverter cartridge but that did not fix it. the hall sensor is on, the diverter motor is working, the preheat is working , and although the 'tap' led is lit up, the fan doesn't start, no ignition,ect. should i have...
  13. O

    main water upgrade ..........

    Hi Lads, Could anybody tell if I am allowed to upgrade a mains water supply with 25mm plastic from outside the new mains stopcock ( which is on the footpath ) to the staircase at the property? its basically a straight run of 7-8m? the customer has got already the new stopcock put in at the...
    • Old Account
    • Thread
    • main water
    • Replies: 16
    • Forum: Bathroom Advice
  14. Hobo128

    Main 24he hot water fault

    Main combi 24 he. When i open the hot water tap the pin from the diverter only comes out slightly not enough to make contact with the micro switch. I am going to change the diaphragm tomorrow with hope that this will solve it which it usually does but i have had it where it doesnt make much of...
  15. H

    noisy main 18 he heat only boiler

    Hi guys, Got a customer with the above boiler that makes a loud noise on start up then stops. this happens intermittently, any come across this?
  16. R

    Problem with rising main tap connections

    Our old mains water tap seized, so we had it replaced a couple of days ago. The original was brass, connected directly to the blue supply pipe, with a smaller outlet going to a pressure control valve with a pressure gauge. The replacement is as shown in the photo. About 40 minutes after it was...
  17. M

    Main combi eco30 pressure fault

    Good morning all, I have been having some issues intermitently with my own boiler, if left off sometimes over night the pressure gauge drops just below the .5 bar mark, the boiler then wont fire up. Commence the topping up via filling loop into green zone around 1 bar (cold) and once boiler...
  18. sammathias

    new build sprinker system/32mm main

    I was told today that apparently on new builds that sprinkler systems are required to confirm with building regs and that a 32mm main is required as standard.... is this just a load of hot air or???
  19. S

    Main he heat only boiler

    Got a boiler service on a main he boiler on Thursday. Never worked on a main boiler before. Anything to look out for? Said keeps cutting in and out so first check will be electrodes. Cheers
  20. D

    15mm rising main to 4 apartments?

    Hi I’m currently working on a 3 story house that’s being converted into 4 flats. I installing 40kw boiler, 15 rads, 4 Heating zones plus a hot water zone. Etc etc Each flat has a kitchen sink, toilet, basin and electric shower. Problem is, I’ve got a 15mm rising main. ‭Im hoping it’ll just...

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