Central heating is turned off from programmer and also all rhe way down from thetmostat and also from boiler heating knob. I have the same problem, I had a plumber in to look at it, its back-flow. Central Heating Turned Off But Radiators Still Hot, Why? A frequent and likely cause is a faulty or jammed three port valve. Grateful if someone could help with this (probably very basic) problem. Central Heating Faults – My Radiators are Hot upstairs but Cold Downstairs. Sometimes you have to repeat this a few times. In a typical central heating and hot water boiler system, the valve sends water to either the radiators, the hot water cylinder, or both. Still having heating problems? But I noticed that when the hot water was on ( I usually have it for a couple of hours a day) some of my radiators were still heating up. FEIN … Trench heating takes away the need to have standard radiators on the wall. Any advice would be appreciated . I get it to come on for about an hour in the morning and 2-3 hours in the later afternoon. tilerneeded_41. As the weather is getting hot, we have set the system up to heat the hot water 2 x day, with heating OFF. Essentially, it’s creating a small blockage. Posted on December 3, 2013 by DIY Doctor. When only heating is selected on my program timer the radiators all work fine and are hot. If you’d like to join in, please sign in or register. ST9400C, mid position valve, Y Plan, V4073A, S PLan, ST6400C, two channel programmer. As the weather is getting hot, we have set the system up to heat the hot water 2 x day, with heating OFF. Thermostats are temperature-sensitive switches that turn the boiler on when heat is required in either the hot water tank or the living space. The most modern heating systems have room thermostats and hot water cylinder thermostats. If the check valve fails because of a broken spring or some debris, your radiators will be hot from the natural convection, even if the heat is not “on.” 2) Diverter Problems. You can cure by having a non return valve fitted in line, but he told me its cheaper to turn off the rads. When most people think of heating problems, they think of inadequate heat or heaters that do not work. The simplest way to check if your heat pump is working is to check if it is making any noise. Some very hot, some luke warm, some barely noticeable. The system should be checked to determine what is powering the boiler and pump, it could be any of these components. My heating comes on when I turn on the hot water, even though the heating is in OFF mode. and the hot water tank your drinking water? You can sign in to give your opinion on the answer. A boiler is your house heating? When you turn off the Central heating using the switch on the timer, the three port valve should prevent any flow to the radiators so they stay cold. Other radiators in the house stay off when turned to this setting- any ideas why this might be happening? I had a look on line and some advice was suggesting that the valve might be a switch or lever attached to the box in the airing cupboard. no they only heat up when the hot water is on. Answer / Solution. Hi I live in a electric baseboard heating,why does my thermostat when we set it at low setting the heat stay hot and not shut off this happens on all 4 thermostat s do you have an answer. Turn the central heating off and wait for at least two hours for the system to completely cool off. Welcome to the Digital Spy forums. Can you change the radiator output temperature with a nest thermostat. Get answers by asking now. The radiator should get hot and, with luck, the valve will now work normally. Yet radiators get hot especially when hot water us running. Within this system, you could create ‘zones.’ This means that you can control the temperature in separate areas of your home, depending on your heating requirements in each room. But, as the bottom of the radiator is potentially blocked, it heads straight for the top; there is no hot water sitting or circulating through the bottom of the radiator. How To Fix Radiators That Only Get Hot At The … I've turned a few of the radiators off individually but with this up and down weather it's a bit of a pain. I had to have a new valve fitted. This afternoon I have discovered my hot water seems to be virtually non existant, but the radiators are scorching hot. If you can only get hot … My cats like to have a rummage around in there from time to time. DIGITAL SPY, PART OF THE HEARST UK ENTERTAINMENT NETWORK. Can You Guess Why? as that is not any longer totally offering the heating device, basically the upstairs rads get warm. I've turned a few of the radiators off individually but with this up and down weather it's a bit of a pain. Hello, I have a Baxi WM boiler which lives in my loft, which is working normally. thanks. Always check the simple reasons first before looking for expert assistance, often the cause is simply due to radiator valves being turned off … I get it to come on for about an hour in the morning and 2-3 hours in the later afternoon. Indeed the boiler can be inactive all day, save for the odd bit of use heating up more hot water when the tank in the loft is not warm enough. I started to think that maybe the sun had something to do with it - heating the water in the central heating system in some mysterious way. Your ancient old boiler could have been installed for either fully or semi pumped operation. Related posts. I have two of my radiators turned to 'off' yet when the heating is on, they both pump out heat full blast. If the valve still does not function after that, it will need to be replaced. would it be beyond the realms of possibility that they might have knocked something out of position. CENTRAL HEATING is a blessing in the cold winter months, when it can feel chilly, even inside your home. If the problem has only just started then it could be a fault with the motorised valve as already stated. What if you cannot turn your heat off? It might require having a heating contractor look at the system to see if it's off balance somehow. I need 20kg of gun powder, in the next 20hrs. So your radiators are getting hot when the heating is turned off and you don't know why? Environment . There are many reasons why one or more central heating radiators in a house are too cold or too hot, use the information here to identify the areas for investigation. I don't recall this happening in previous summers, is there a problem? Also noticed that hot water takes longer to reach the tap . But I noticed that when the hot water was on ( I usually have it for a couple of hours a day) some of my radiators were still heating up. A valve can become stuck closed when is left in the ‘off’ posistion for a long time. I have certain plans to fulfill. All Rights Reserved. If your radiators are always on but you have no hot water. Common reasons why… What type of shower works best with a combi boiler? If the valve fails, water still gets through and they get hot despite the fact the switch is off. Is the potential stuck valve in the boiler itself (in which case I wont try and go near it) or will it be with my hot water cylinder in the airing cupboard? If you have a fullly pumped system the motorised valve is probably stuck in the open position, Try removing the actuator (the motor part) and freeing the brass butterfly valve with a spanner. The cylinder thermostat is calling for hot water from the boiler, but the stuck valve means it can only go through the radiators. Friday 3rd June 2011 Bathroom radiators are normally connected to the hot water circuit rather than the heating circuit from your boiler. Whilst hot water supply is good, the upstairs radiators still get hot - the nearer the hot water tank, the hotter. Radiators are getting hot when the heating is turned off? We have a boiler downstairs and a hot water tank upstairs. how to dispose of near-full expanding spray foam can? Panasonic EY46A5 14.4v/18v ~ Multi Tools #9 12th December 2020. What do you think of the answers? I had the same problem with mine and I just checked the valve and oiled it up a bit and now it is fine. What can be done about this? Thanks Why is my radiator cold? Central heating systems work by pumping a continuous flow of hot-water from the boiler to the radiators, then back to the boiler to pick up more heat. For a quick fix, turn the rad valves off until the winter comes to stop them heating up. I has to get a good neigbours to go in and re-attach taco valve. Videos. If your central heating comes on with the hot water. If the pump has stopped working, it will no longer be heating the water required to keep radiators warm and will result in all of the radiators losing their temperature.. i seem to be having a problem with my central heating. ©2020 Hearst UK is the trading name of the National Magazine Company Ltd, 30 Panton Street, Leicester Square, London, SW1Y 4AJ. Please can you donate ASAP? Registered in England. I don't recall this happening in previous summers, is there a problem? My radiators seem to be 'on' despite the fact that my central heating is set to 'off'! Why is my radiator hot upstair but cold downstairs If the radiators are getting hot upstairs but cold downstairs then this is most likely going to be the central heating pump . although the thermostat on my boiler is low at 2 and the thermo to regulate the radiators is at 18, again very low for this time of year - the radiators are too hot to touch with the hand. Thereafter, … Hi, the problem is that when the heating is switched on, some of the radiators are hot and others are cold, but I think I've fixed the issue. … If any changes have been made to the system, such as adding or moving radiators, then it is possible that this has resulted in reverse circulation and can cause the heating to come on when the hot water is on. We have replaced a couple of stats 2 2 Answers from MyBuilder Heating Engineers. What can be done about this? If this has always been the case then the return pipe from the hot tank to the boiler is connected in too close to the upstairs radiator circuit. Join Yahoo Answers and get 100 points today. We have a boiler downstairs and a hot water tank upstairs. We sometimes get questions from people with radiators that produce heat, even when the heating is off. It normally comes down to a problem with either your diverter valve or your check valve. those valves can leak internally and this can furnish you the symptom which you describe. If your heating system has a heat pump, the next step in identifying why your radiator is cold is to ensure that this is working. or is it something you can not diy? They’ll run some tests and establish whether it is indeed a check valve or diverter valve at fault – or a different underlying issue altogether. Best Answer. My Airbnb guests tend to turn the tado rad thermostats off its seating resulting in a very hot radiator which is set to a low temp. Some very hot, some luke warm, some barely noticeable. The valve has almost certainly stuck in the heating position. it's due a service anyway so i'll give my man a call. Central Heating Pump. It is an ideal way to generate heat when wall space is minimal or you would like a heat curtain to a doorway, so it’s great for cold surfaces, such as outside walls and glazed areas. Still have questions? Starting from the radiator furthest from the heating source if you have a combi boiler, or furthest from the water pump (usually found in the airing cupboard next to the hot water cylinder) if you have a heat-only boiler, turn all thermostats to 2. Roger explains in his latest Know Your House whiteboard explainer. The central heating pump pushes water from your boiler or hot water tank around your central heating system so that the water in your pipe work and radiators is constantly moving. This will … Sounds like a programmer problem - ours did that a couple of years ago luckily we had the gas covered by a maintenance contract as it was quite an expensive part. To correctly identify the issue, enlist the help of a qualified Gas Safe Registered engineer. If you need a one-off repair to fix the cold radiators in your home, you can count on our expert repairs team to get things working again in no time. But when both heating and hot water are on the water gets hot but all the radiators go cold. With all that nice weather last week I turned my central heating off. We have one that just keeps heat from the boiler -- even when the boiler is not on -- and this is our solution. ABOUT; BLOG ; CONTACT; VOTE; Skill Builder Guides & reviews for building and construction. can a non-direct vent gas stove be converted to direct vent? Saturday , 26 December 2020. http://www.thamesboilers.co.uk Update: I've moved house, so Just Central Heating is no more. Radiators will naturally get slightly hotter at the top as heat rises. Whilst hot water supply is good, the upstairs radiators still get hot - the nearer the hot water tank, the hotter. The valve is not sealing off the central heating port correctly. any pants experts know how to do these dark indents along the seams? This happen to my system. Hot water flows through your radiators when it should flow through the cylinder coil instead. On many structures there is an electrically operated valve that directs the nice and cozy water furnish dependant upon call for ie; whilst the heating is off, it strikes so as that it is purely offering water to ultimate up your warm water tank, yet whilst heating is on, it strikes and components the two heating and warm water storage structures, or purely the heating if the nice and cozy water tank is as much as temperature. One guests had the room with window open at 27deg and complained they couldn't turn rad temp down. Water Damaged Ceiling. no they only heat up when the how water is on. I opened all the valves (not the thermostatic ones, the other valve) on the radiators and then part closed them off according to which radiators got hot first and this seems to … ? It could also be that the valve is ok but the control wiring between the valve and its commands (switches / thermostats) has a fault. Extra Tip. 15th December 2020. But, a less expensive fix is to try shutting off the valve on that radiator and see if it cools down. Ok why do we have to turn the thermostat on or off to get heat the stat should work by shutting off when reaching temp.why. Describes the situation the problem occurs or the environment that the question applies to, including products affected. There are two main reasons that your radiators will stay hot when your heating is off. In to look at it, its back-flow on December 3, why are my radiators hot when the heating is off by DIY Doctor … we have boiler. Basically the upstairs radiators still get hot especially when hot water tank or the space! 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When your heating is selected on my program timer the radiators all work fine and hot! Thermostats are temperature-sensitive switches that turn the rad valves off until the winter to... Have no hot water takes longer to reach the tap my man a call my cats like join!