If a central heating pump is not working, it can wreak havoc on your whole heating system. In this case 'c' means central heating being supplied. Re: Central heating only works when hot water is switched on. Heat won't turn off: Troubleshooting & repair when there is too much heat or when the heat won't turn off, This article explains where and how to turn off the heat if simply turning down the thermostat does not stop un-wanted heat coming from heating radiators or baseboards. We switched on our central heating briefly the other day (Boilermate III & Potterton Suprima Boiler) The heating works fine but will not switch off! If the heating hasn’t come on … The heating would come on in … In some cases, the best solution to this problem is for your engineer to replace the system’s diaphragm or even the whole diverter unit. This is most likely caused by a problem with your central heating pump and can often happen when your heating has been switched off for a few months (e.g. Just blower, no heat or AC. It is however only the last couple of weeks that the pump has been running half the night (even when the hot water and heating are turned off). Central Heating is coming on even when switched off at the control panel. We usually switch the central heating to 'on' using the switch on the timeclock on the boilermate III and use the thermostat to control the heating (turning the thermostat down to 10 degrees when we want to switch the heating off). My central heating comprises a Baxi Duo-Tec Combi HE with a Honeywell Evohome Controller (latest Wifi version), wireless relay box (BDR91) and 6 Radiator Controllers (HR92). Up till now my heating has been working fine, on/off with timer, room-stat and tank-stat etc. However, in some cases when a boiler keeps firing up every few minutes and then quickly turns off again it could indicate a fault. The other day the central heating mcb tripped and after resetting the heating is constantly on even when the timer says off. A wiring issue could also be the cause for your boiler not turning off. Central heating pumps are located behind the casing on the boiler. I have an 18 month old Worcester Bosch oil burning combi boiler supplying hot water, a radiator system in the old part of my bungalow and underfloor heating in the new extension to the bungalow. So, if you turn your AC “off” at your thermostat, that command isn’t registering with the fan or cooling system, causing your AC to stay on when you’ve told it to shut off. Then, when power restored, fan stays off. When the thermostat is set to Fan On it may sound like the heating or cooling is running even when it isn’t. Every now and then the boiler has a mind of it's own and fires up even when none of the systems are calling for hot. jenni75 Sun 28-Aug-11 17:54:39. Only resolution is to switch off at power socket. Radiators hot when central heating off and thermostat at 0 (5 Posts) Add message | Report. The c/h is turning on and off based on the thermostat and the boiler is turning off by itself - which is more than it has done for the last few days! Hi there, First time posting so hope can be of assistance. Where is the pump located? Make sure that any humidity control features are … I got it to stop by taking the panel off the boiler and turning the temperature dial down on the inside of the boiler. The only way to stop the pump is turn off the boiler, controller etc at the mains, although it does seem to turn off eventually by itself if you don't turn off … I was told that the central heating would come on by itself even if the programmer was switched to the off position. Thanks Contractor's Assistant: Sometimes appliance issues that that you think will be really complicated end up being easy to fix. was asked about a central heating problem the other day but as not done much of this was not sure. The only way to stop it is to turn the actual boiler to 'heating off'. Yesterday I noticed that the radiator in our bathroom was hot, even though the heating is switched off. The underfloor is set to come on at 3pm, wall stat set for 19 deg. I think the system is working now. It comes on when 'hot water' comes on. I had a plumber come round who told me the valves are working. My house has gas central heating, with a Myson Economist boiler in the kitchen, and a pump, timer, etc in the airing cupboard upstairs. What's new. The hot water and central heating are both controlled by a conventional digital control panel, set to turn on and off at predetermined times. Any ideas? 4. When you have no central heating, first make sure your thermostat is working and then check to see if the boiler pressure is too low. The system is controlled by a "Lifestyle 711" timeswitch (standard two timer on /offs per day program))and I have a single thermastat in the hall. New posts New video ... they both pump out heat full blast. No, its an ideal icos He15. We’re going to cover the most common heating pump problems and what can be done to fix them (or, how much central heating pumps cost to fix). Otherwise all that is happening is the boiler is 'cycling' - which means it is heating the water in the sealed part of the system heats up to 70, the boiler turns off, the water cools down to say 60 and the boiler starts again to repeats the cycle without any useful heat ever having been taken out. My boiler continues to fire even though the heating and water are off on the control panel and the thermostat is turned to zero. The boiler recently started to fire occasionally when the timer was off and the pump runs even though the timer is off. One of the problems I've had is detailed on this page, so you can find out if this is happening to you. As with many of the fixes above, if your system is short-circuiting, you’ll want to contact an HVAC tech to fix it. Check that the spindle is turning. At first I thought the problem was the thermostat, as the heating was coming on even if the thermostat was switched right down but later I realised the central heating was coming on and off at odd times no matter what I set it at and it dawned on me that the central heating was firing up … I have a regular gas fired boiler, hot water tank, a central thermostat in the hall and individual thermostats on all the radiators bar the ones in the kitchen and bathroom. Often, the logical conclusion is that the timer clock has simply reset itself or is playing up. It is called short cycling and is likely to make your heating bills more expensive and, in the long term, will cause damage to the boiler. Unknown. It's made a lot more noise than it should have done. over summer). Set your thermostat Mode to Off and Fan to Auto. I have a megaflo 300l with valiant ecoTech plus 637 boiler. Hi, I hope that some kind soul out there might help me with a Problem with a Worcester 24cdi combi boiler. Only way to stop it is to cut the mains switch. This is showing the heating at 01:15 as being very firmly OFF. The pump on my central heating system is on permanantly even when hot water and heating button are switched off. Can anyone help? Question - My pump keeps running even though central heating is off - BN. One of the radiators even gets warm when hot water on and radiator thermstat is turned off (tested with heat on and hot water off--radiator stays cold, so valves are working and hot water is somehow getting into this radiator). Underfloor Heating Working Still Even When Switched Off At The Control By Immi, February 24, 2015 in Central Heating Forum & Storage heaters Forums - Forum, Including ELECTRICAL Recommended Posts Called a plumber who removed the electric valve to the central heating which I am sure is not the problem as it only controls whether the water goes round the heating circuit. The boiler is a Worcester Danesmore 12/14 with a ACL Lifestyle control panel with addition thermostat. Quick Fix: Locate the pump (this is usually situated near the boiler) and gently tap it with a mallet or hammer to kick-start it. 22/03/08 - 15:27 in Advice #1. The system has not been touched, no new parts, no serivce or anything. As the title suggests when our Gas Central Heating is turned off at the wall controls the radiators stay hot and the only way to make them go off is to go around and physically turn off all of the individual thermostats on them. The Appliance Technician I'm going to connect you with knows all the tricks and shortcuts. Issues with your boiler’s wiring. Central Heating stuck on. We use cookies to improve your experience. As is the case with most appliances, tampering with wires can be dangerous. Diagnose & fix heat that won't turn off when it should: here we discuss various causes of too much heat or of a heating system that does not shut off whenit should. UPDATE: thank you for the 2 answers however I've checked and comfort mode is off but the boiler still fires up constantly when no water is running and the heating is off. Even with the thermostat removed, it randomly turns on. My TRANE XE 90 blower fan has a mind of its own. It has gone a day without coming on (thermo off the wall the entire time) then just cycles itself on. Lowering the room-stat temp does still turn the heating off. Hi i have an ideal classic se12 ff and when the hot water is on and the central heating is off and thermostat in the room is set to 0 the radiators are hot. ! Thermostats allow you to control the temperature of the central heating, as well as the time it should come on. By continuing to use this site you consent to the use of cookies as described in … Will not cycle off unless I remove power to the entire HVAC unit. None of the other radiators in the house were on. Does megaflo system needs boiler be on when heating and hot water is not on. Make sure that the Circulating Fan feature is not active. There’s nothing worse than being stuck without central heating and not knowing what the problem is. The radiators are hot. Post a Plumbing Job Post a Central Heating Job. Find the answer to this and other Plumbing questions on JustAnswer. It's really odd and I'm baffled as to why this and only this radiator in the bathroom remains warm. Here at Superwarm, I receive a lot of calls from customers who suspect this might be the case – however, sometimes it turns out to be something else entirely. We've got gas central heating and over the last couple of days during the cold weather, one radiator has continued to stay warm during the day while the heating is off. Inside of the problems I 've had is detailed on this page, so you can find out if is. 'Hot water ' comes on when heating and water are off on the inside the! Can wreak havoc on your whole heating system I 've had is detailed on this page, you! 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