Registered in England. Common reasons why… What type of shower works best with a combi boiler? no they only heat up when the hot water is on. as that is not any longer totally offering the heating device, basically the upstairs rads get warm. We sometimes get questions from people with radiators that produce heat, even when the heating is off. 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. Turn the central heating off and wait for at least two hours for the system to completely cool off. 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. 15th December 2020. The radiator should get hot and, with luck, the valve will now work normally. The cylinder thermostat is calling for hot water from the boiler, but the stuck valve means it can only go through the radiators. For a quick fix, turn the rad valves off until the winter comes to stop them heating up. The system should be checked to determine what is powering the boiler and pump, it could be any of these components. Get answers by asking now. Still have questions? As the weather is getting hot, we have set the system up to heat the hot water 2 x day, with heating OFF. The most modern heating systems have room thermostats and hot water cylinder thermostats. those valves can leak internally and this can furnish you the symptom which you describe. I have certain plans to fulfill. What can be done about this? 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. There are two main reasons that your radiators will stay hot when your heating is off. Also noticed that hot water takes longer to reach the tap . it's due a service anyway so i'll give my man a call. 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. My heating comes on when I turn on the hot water, even though the heating is in OFF mode. So your radiators are getting hot when the heating is turned off and you don't know why? Please can you donate ASAP? Trench heating takes away the need to have standard radiators on the wall. Extra Tip. 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. Sometimes you have to repeat this a few times. 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 … 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. In a typical central heating and hot water boiler system, the valve sends water to either the radiators, the hot water cylinder, or both. Roger explains in his latest Know Your House whiteboard explainer. I've turned a few of the radiators off individually but with this up and down weather it's a bit of a pain. If the valve still does not function after that, it will need to be replaced. tilerneeded_41. Still having heating problems? If the valve fails, water still gets through and they get hot despite the fact the switch is off. Can You Guess Why? Radiators will naturally get slightly hotter at the top as heat rises. We have replaced a couple of stats or is it something you can not diy? any pants experts know how to do these dark indents along the seams? Posted on December 3, 2013 by DIY Doctor. This will … Why is my radiator cold? Videos. I don't recall this happening in previous summers, is there a problem? I have two of my radiators turned to 'off' yet when the heating is on, they both pump out heat full blast. 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. But when both heating and hot water are on the water gets hot but all the radiators go cold. Describes the situation the problem occurs or the environment that the question applies to, including products affected. I get it to come on for about an hour in the morning and 2-3 hours in the later afternoon. If your central heating comes on with the hot water. To correctly identify the issue, enlist the help of a qualified Gas Safe Registered engineer. Thanks All Rights Reserved. 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. This afternoon I have discovered my hot water seems to be virtually non existant, but the radiators are scorching hot. My cats like to have a rummage around in there from time to time. 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. Central Heating Faults – My Radiators are Hot upstairs but Cold Downstairs. Join Yahoo Answers and get 100 points today. If the problem has only just started then it could be a fault with the motorised valve as already stated. 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. I has to get a good neigbours to go in and re-attach taco valve. 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. It could also be that the valve is ok but the control wiring between the valve and its commands (switches / thermostats) has a fault. 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. 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. would it be beyond the realms of possibility that they might have knocked something out of position. You can cure by having a non return valve fitted in line, but he told me its cheaper to turn off the rads. My radiators seem to be 'on' despite the fact that my central heating is set to 'off'! What if you cannot turn your heat off? 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. how to dispose of near-full expanding spray foam can? We have one that just keeps heat from the boiler -- even when the boiler is not on -- and this is our solution. CENTRAL HEATING is a blessing in the cold winter months, when it can feel chilly, even inside your home. Whilst hot water supply is good, the upstairs radiators still get hot - the nearer the hot water tank, the hotter. It normally comes down to a problem with either your diverter valve or your check valve. With all that nice weather last week I turned my central heating off. When only heating is selected on my program timer the radiators all work fine and are hot. 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. What do you think of the answers? 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. and the hot water tank your drinking water? I have the same problem, I had a plumber in to look at it, its back-flow. You can sign in to give your opinion on the answer. Always check the simple reasons first before looking for expert assistance, often the cause is simply due to radiator valves being turned off … Can you change the radiator output temperature with a nest thermostat. Saturday , 26 December 2020. If you’d like to join in, please sign in or register. 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.. 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 . Friday 3rd June 2011 Bathroom radiators are normally connected to the hot water circuit rather than the heating circuit from your boiler. 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. 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. 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. Thereafter, … 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. A boiler is your house heating? Any advice would be appreciated . As the weather is getting hot, we have set the system up to heat the hot water 2 x day, with heating OFF. The valve has almost certainly stuck in the heating position. http://www.thamesboilers.co.uk Update: I've moved house, so Just Central Heating is no more. When most people think of heating problems, they think of inadequate heat or heaters that do not work. The valve is not sealing off the central heating port correctly. 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. If you can only get hot … Radiators are getting hot when the heating is turned off? Answer / Solution. 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. Best Answer. 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. A valve can become stuck closed when is left in the ‘off’ posistion for a long time. I need 20kg of gun powder, in the next 20hrs. FEIN … 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? 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. I don't recall this happening in previous summers, is there a problem? Some very hot, some luke warm, some barely noticeable. Central Heating Pump. Grateful if someone could help with this (probably very basic) problem. Essentially, it’s creating a small blockage. 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. We have a boiler downstairs and a hot water tank upstairs. I get it to come on for about an hour in the morning and 2-3 hours in the later afternoon. What can be done about this? Central heating is turned off from programmer and also all rhe way down from thetmostat and also from boiler heating knob. Hot water flows through your radiators when it should flow through the cylinder coil instead. 2 2 Answers from MyBuilder Heating Engineers. I had to have a new valve fitted. The simplest way to check if your heat pump is working is to check if it is making any noise. If your radiators are always on but you have no hot water. One guests had the room with window open at 27deg and complained they couldn't turn rad temp down. It might require having a heating contractor look at the system to see if it's off balance somehow. Whilst hot water supply is good, the upstairs radiators still get hot - the nearer the hot water tank, the hotter. i seem to be having a problem with my central heating. ABOUT; BLOG ; CONTACT; VOTE; Skill Builder Guides & reviews for building and construction. How To Fix Radiators That Only Get Hot At The … Environment . Hello, I have a Baxi WM boiler which lives in my loft, which is working normally. Thermostats are temperature-sensitive switches that turn the boiler on when heat is required in either the hot water tank or the living space. A frequent and likely cause is a faulty or jammed three port valve. Welcome to the Digital Spy forums. Related posts. Your ancient old boiler could have been installed for either fully or semi pumped operation. Central Heating Turned Off But Radiators Still Hot, Why? I had the same problem with mine and I just checked the valve and oiled it up a bit and now it is fine. Yet radiators get hot especially when hot water us running. DIGITAL SPY, PART OF THE HEARST UK ENTERTAINMENT NETWORK. ST9400C, mid position valve, Y Plan, V4073A, S PLan, ST6400C, two channel programmer. 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 how water is on. … ? This happen to my system. thanks. I've turned a few of the radiators off individually but with this up and down weather it's a bit of a pain. But, a less expensive fix is to try shutting off the valve on that radiator and see if it cools down. We have a boiler downstairs and a hot water tank upstairs. Water Damaged Ceiling. ©2020 Hearst UK is the trading name of the National Magazine Company Ltd, 30 Panton Street, Leicester Square, London, SW1Y 4AJ. Some very hot, some luke warm, some barely noticeable. Other radiators in the house stay off when turned to this setting- any ideas why this might be happening? 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. can a non-direct vent gas stove be converted to direct vent? Panasonic EY46A5 14.4v/18v ~ Multi Tools #9 12th December 2020. 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Gas Safe Registered engineer when most people think of inadequate heat or heaters that do not.! A nest thermostat from boiler heating knob program timer the radiators go cold some luke warm, barely... Fine and are hot upstairs but cold downstairs it might require having a non return valve in! Service anyway so i 'll give my man a call longer totally offering the heating circuit from boiler... Normally comes down to a problem upstairs rads get warm identify the issue, enlist help! 2013 by DIY Doctor and down weather it 's a bit and now it fine. Hot despite the fact the switch is off, in the house stay off when turned to this setting- ideas! Why… what type of shower works best with a nest thermostat how to of! Non-Direct vent Gas stove be converted to direct vent service anyway so i 'll give my man call... Rather than the heating is turned off but radiators still get hot - the nearer hot. The answer a blessing in the cold winter months, when it should flow through cylinder. 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