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  • If you central heating doesn't work, radiator isn't coming on, boiler wont come on, etc - then post a REPLY in this EXISTING THREAD My Central Heating Doesn't Work - Master Thread - Please aboid making new threads on this same subject.


Central Asia is a region in Asia which stretches from the Caspian Sea in the west to China and Mongolia in the east, and from Afghanistan and Iran in the south to Russia in the north. The region consists of the former Soviet republics of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. It is also colloquially referred to as "the stans" as the countries all have names ending with the Persian suffix "-stan", meaning "land of".Central Asia was historically closely tied to the Silk Road trade routes, acting as a crossroads for the movement of people, goods, and ideas between Europe and the Far East.In the pre-Islamic and early Islamic eras (circa 1000 and earlier) Central Asia was inhabited predominantly by Iranians, populated by Eastern Iranian-speaking Bactrians, Sogdians, Chorasmians and the semi-nomadic Scythians and Dahae. After expansion by Turkic peoples, Central Asia also became the homeland for the Kazakhs, Uzbeks, Tatars, Turkmen, Kyrgyz, and Uyghurs; Turkic languages largely replaced the Iranian languages spoken in the area, with the exception of Tajikistan and areas where Tajik is spoken.
From the mid-19th century until almost the end of the 20th century, Central Asia was colonised by the Russians, and incorporated into the Russian Empire, and later the Soviet Union, which led to Russians and other Slavs emigrating into the area. Modern-day Central Asia is home to a large population of European settlers, who mostly live in Kazakhstan; 7 million Russians, 500,000 Ukrainians, and about 170,000 Germans. Stalinist-era forced deportation policies also mean that over 300,000 Koreans live there.Central Asia (2019) has a population of about 72 million, in five countries: Kazakhstan (pop. 18 million), Kyrgyzstan (6 million), Tajikistan (9 million), Turkmenistan (6 million), and Uzbekistan (35 million).

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  1. Dan

    My Central Heating Doesn't Work - Master Thread

    I thought I'd create a master thread to move all of these similar threads into, over time like. If your central heating doesn't work boiler doesn't work radiators not working radiators or heating system is cold thermostat wont work or respond Then post a reply in this thread. Rather than us...
  2. R

    Strange central heating

    Hello its my 1st post hope im in the right place We brought a new house a medium-large 3 bedroom semi, we moved in the summer. Now coming to winter we started putting the central heating on. The central heating has a mind of its on it’s really strange iv never experienced this We put the heating...
  3. K

    What could be wrong with central heating?

    Hoping for some advice as I seem to be hitting a brick wall. Moved into a house last year, radiators down strairs (4 of them) never really got warm, replaced the combi boiler this year as it was loud and leaking (its in the loft which has been converted into a room). Since turning the heating...
  4. A

    Central heating rads

    Hi all, My property is a 3-bed terraced with double glazing windows... It currently has no central heating, so I will get a new combi fitted shortly... However, I will be putting in the central heating. My question is, is it still necessary to have a lockshield on the hall rad? I assume that...
  5. D

    Clipping Pipes running though metal web joists

    Hi Guys. This is a question on how to clip central heating pipes (Hep2 15, 22 and 28mm) when running 90 dgrees to metal web joists. How to do it and look good. I could use a load of Britclips with a section of wood accross, clip to that. Or use the electricals trays, and clip to that...
  6. J

    Cant refill heating system back boiler run off parkray coal fire

    My father has a parkray fire which has a back boiler . He had a leaky radiator, when he was attempting to fix leak the circulating pump (grundfos) was making a rattling noise this stopped once the radiator leak was fixed ( he lost a fair bit of water ) . The problem being now is that the...
  7. D

    Limescale cleaner for central heating

    Hi Where I am living the water is very hard. The result is my heat exchanger most likely has accumulated limestone. The problem is that due to the limestone accumulation the boiler is cutting out at high temperature, thus not having the possibility to transfer enough heat to the radiators. Is...
  8. Ticking sound

    Central heating clicking noise. New install

    New install, under a year old. Boiler downstairs. Mega flow upstairs in airing cupboard. Undfloor downstairs. Rads upstairs. Whenever the heating comes on. I get a clicking ticking buzzing type sound. Please see videos. Coming I think from the metal boxes. Both upstairs and down. I believe...
  9. L

    Weird central heating issues

    Evening all. I am just trying to get some idea as had a couple of plumbers round but still getting same issue . Basically moved house recently and i just cant get figure the central heating system out .So.... Its had a new Worcester bosch boiler about 2 years ago so all good on that front and...
  10. B

    Ever had Central Heating Water leak INTO Cylinder fresh water ?

    Hi, Vented system, F&E Tank etc. Cylinder about 10-12 years old. Just running some x800 through to try & improve radiator heat. (another story) Been in a couple of hours. Just run a bath & the water has a slightly odd brown'ish tint to it. never had before. does not smell. Is there anyway it...
  11. T

    Central heating room thermostat replacement

    Hi all, I have a simple mechanical Honeywell wall thermostat (i think you call it a 2 wire). I want to replace it as it is a bit old and unsightly and seems to have a lot of "play" between on and off. I could obviously easily replace it with the same thermostat or a very similar one, however i...
  12. M

    Central heating switches off

    Boiler is working but out the blue is goes off. Controller is working, receiver is working, can see it clicking and red light flashes when I move thermostat up and down. If I override hot water, boiler fires up but nothing for heating. Boiler is Worcester Greenstar, 2 yrs old. Brand new...
  13. D

    Grundfos noisy oil central heating

    Hi. We have a wolf oil central heating system, with a grundflos alpha 2 circulation pump. Sometimes it makes a tinkle noise ( like metal to metal) and sometimes not. With and without burner running. I removed pump and impeller is ok and clean. Bled system through. Nothing helps.
  14. J

    Central heating in winter when on holiday

    Hi all, I am thinking to set boiler when we are on holiday soon this winter. First, I want to turn off the cylinder (hot water tank) handle (please see attached photo arrow pointing), this way the house will no water flow at all, this is to prevent water/pipe leaking/burst which happened last...
  15. dilligaf

    Grundfos Central Heating Pump Weak?

    Do central heating pumps lose their strength over several years and is it worth taking it apart and servicing it? Are the two seals either end 1 1/2 inch or 1 1/3 inch? What's the latest central heating pump should I need to replace mine (photo) like for like?
  16. Chris-H1711

    nest thermostat not activating central heating

    Good Morning. I've been having an issue for a couple of days, that my nest thermostat is demanding heat, but the boiler does not activate. However, when using the heat link manual button, the heating works fine for around 2 hours. I have recently replaced the pump from a wilks gold rs50 to a...
  17. dilligaf

    Central Heating Filter??

    Can anyone tell me if I have a central heating filter? I have a glow worm micron 30ff with a tank in the airing cupboard and a tank in the loft. I know there is a Grundfos pump but I cannot see a filter?
  18. C

    Temperamental Central Heating

    When putting our CH and HW on, it’s sometimes a lottery as to whether the central heating will come on. The HW works every time with no problems. Furthermore, when the CH does come on, sometimes only half of the radiators in the house come on - when this happens, we switch CH/HW off and switch...
  19. J

    Boiler and heating question

    Hi, I have a question about my s plan heating. I have a Worcester 35cdi erp boiler connected to 2 heating loops and an unvented indirect cylinder via 3 switch values. If I have the radiator heating on and water heating on the system doesn’t close the heating or water switch values. So doesn’t...
  20. D

    What is the reason for having a soldered drain cock?

    The majority of joints on my central heating system are threaded, apart from a few that are push fit. However, the drain cock is a soldered fitment, so the question is - why is this soldered (unless on some older BSP systems) when a threaded joint is suitable for everything else? Just seems...
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