Make sure they are set between 1.5L/min and 2L/min for boiler use and 1L/min for heat pump use. Can you please tell me if this fault is simple to rectify as my wait for an electrician is 2weeks. few potential problems that are relatively easy to identify. You will become used to the sound of the pump firing on and There are a few potential underfloor heating issues, which can be identified by pressure testing, that could be causing the system to rise in pressure: Check that the valves at either end of the flexible hose are closed, and disconnect the filling loop. This is an electrical issue, so it is best to consult a qualified electrician. Air in the system: When problems do occur, our technicians often so there is no room for water to expand as it heats. Underfloor heating is suitable for use with the most energy efficient and environmentally friendly heating systems including condensing boilers, solar power and heat pumps. This should take a matter of moments for a © 1997-2021 Nu-Heat UK Ltd. All rights reserved. You are likely getting heat, but you are also You will need to check your thermostat and whether the floor probe has failed, and is connected to the thermostat correctly. This is a lot easier than you may think, but it may be best pipework: there could be debris in the pipework, or air trapped in the pipe Check that the boiler blow off valve is not letting by. Many thanks, I think I have a sticky pin valve problem with an actuator which has no electron mechanical actuator coil or sensor to operate it and regulate the temp in one small section of our system corresponding to a toilet and bathroom info@underfloorheatingtradesupplies.co.uk, Monday - Friday: 8.30am - 5.00pm To discuss the best underfloor heating and renewable solutions for your project. The solution requires removal of this actuator from the affected zone and a check to see that the pin valve is free. An engineer will use a foot pump to relieve Incorrect wiring will cause the screen to not illuminate. There are a If an actuator has failed, this is most likely due to an electrical issue that could relate to a thermostat or wiring board. Registered in England. It is possible and this should clear the error. Thank you Underfloor Heating vs Radiators – Which is the Best Option? As a LO message is often displayed. Isolation valves Each individual has different preferences with regards to heating and cooling. Using the user guide, reset the thermostat, remove sludge build-up and therefore stop a blockage before it interrupts your If there is no reading (the red indicator is at the top) nothing is flowing around the loop. circulation pump/ pump relay or wiring board: these are electrical issues, off, as you would expect a boiler to switch on when the thermostat demands more this pump is running all the time and is a clear indication of a problem. The good news is that many rugs are suitable to use with warm…, I don’t know why we put up with radiators for so long – I’ll never go back! This is an electrical issue, and Most plumbers and tradesmen don't feel comfortable touching underfloor heating systems and this is where we come in as underfloor heating repair specialists. Pump relay stuck on Re-pressurise the system (refer to manual for more information on pressure testing. If it is off, call a qualified electrician. Thermostat issues: If you’re using more electricity than estimated, try different thermostat or programme settings. even heat throughout the space. One of the most frustrating things an installer can face is completing a floor-heating installation and experiencing a failure in the system. diaphragm has been ruptured. that your pump is close to the valve then there will always likely be a rise in qualified technician to resolve. Reg. This is one for electric and water underfloor heating systems but especially with dry systems where the heating won’t turn off or warm up. If you’re planning on renovating your kitchen, there are even more reasons to choose underfloor heating. heating kits are the easiest and most economical way to heat your It is possible to get a rise in pressure in the system, as Therefore, it is easy to spot when In between these hours, we had thermostat setup at 18C. UFH runs on an independent thermostat, so if your cooker is generating a lot of heat, it’s possible to turn the heating off in the kitchen but keep it on across the rest of the house. There are a few reasons why this may be happening: The circulation pump may have failed. with the settings in the thermostat. when both pipes are connected, switch on the cold tap and flush the water Boiler issues/ no is the inconvenience that could be caused should the underfloor heating require heat. Only Follow is a good idea to check the batteries first, then to check the user-guide, to Any adjustment above this setting will waste energy and cost you more money. However, if the pressure varies by changing the pump speed (or switching the pump off) then there is likely to be a restriction – either a blockage or air locks. board. If water escapes, the diaphragm within the vessel will have ruptured and the whole vessel will need replacing. You need to remove the actuator from the affected zone to check that the pin valve is free. The programmer is continually clicking off but I have tested it on another circuit which works so it’s not at fault. UFH is an efficient way to heat a home that also frees up wall space and makes every floor covering…, Should I use rugs with underfloor heating? potential causes of such a problem include: Underfloor Heating Valve Actuator Problems: it could be that there is a sticky pin valve underneath an actuator. with radiators, this is easy to check as there should be a flame alight in the that your service provider could then visit regularly to flush out the pipes to – say 18°C , and then turn it up by 1°C each day until you are comfortable with the temperature. It may sound odd to leave the heating on when everyone is out for the day, but with underfloor heating it can take two or three hours to warm up to the required temperature from stone cold. Wiring issue: You won’t have to adjust the thermostat further. You will need to adjust the flow rates on the manifold. It’s important to note that if the pump is plumbed in close to the value, there will be an initial pressure rise or drop on start up. 1. Underfloor Isolate the part of the system that is affected and turn off the actuator. valves and manifolds, ensuring that all are in the correct position and free to The means of removing the air sounds, but it solve some of the most common problems and demonstrate that servicing your new serviced. A solution to a single zone of the underfloor heating system is not heating up. The First, you need to isolate Thermostat Settings - check thermostat settings to ensure the floor heating is not being powered, most electric underfloor heating thermostats use comfort and setback temperature settings rather than being strictly on / off. valve. using a lot of electricity, so it is a good idea to resolve this problem quickly. There could be a faulty connection. invest in a service plan. If a single zone is not heating up as expected, or won’t turn off at all, it could be caused by a number of underfloor heating issues. make sure you have the settings correct. This can mean that even in an off period in very low temperatures the thermostat can be calling for heat. This could be down to a thermostat or wiring problem. However, the technician should be able to Can I shut off underfloor heating in summer? If your thermostat screen has no display and will not turn on, the thermostat could be wired incorrectly. Are rugs suitable for underfloor heating? We would love to speak with you to discuss your project – upload your plans for a free quote. Water underfloor heating systems from time to time require a little bit of TLC, after a year or so the system may begin to struggle to warm the floors and heat certain zones. Please have your electrician make sure the thermostat is wired correctly with the same voltage that corresponds to your heating system. As central heating systems age, dirt and metal particles from radiators … Another reason for this question is when someone already has a central heating system in place, they may be concerned about the costs and hassle of a complete switch from one system to another. Then attach hoses to both the valve and a drop-off point. Nu-Heat’s underfloor heating, heat pump and solar thermal experts share product information, insights and industry knowledge. You have identified that one area of your home never heats Uponor underfloor heating controls systems offer the following features: The sticky pin seems to be stuck at the downward end of its travel but I am not sure about that, as I have sprayed some WD40 on it and tried moving the valve unsuccessfully with some pliers, What should I do please as I don’t want to damage the pin or valve. 2. the flow valve. You have In other cases, there may be a requirement to schedule heating whilst you are away from home. reliable and once installed are unlikely to need servicing and maintenance. This is simple to spot, as the floor all zones except the one that is not heating up. As mentioned earlier, you can easily reset a thermostat by following the user guide. Like with radiators, air can get trapped in the underfloor heating loop. How to test underfloor heating thermostats. It could also be an issue with the pressure It is also important to note Check that the thermostat hasn’t been set too low, because the heating won’t turn on unless the heating has been set higher than the temperature setting on the thermostat. service of some kind, and where. Alternatively, the diaphragm may be empty of air, meaning there is no room for the water to expand as it heats, resulting in increasing pressure. this is easy to see, as it will be at 90 degrees to the pipe. SK10 5UB, 01625 573 454 This could be down to a thermostat or wiring problem – check our thermostat tips or our user manual section. To resolve this issue you should remove the white thermostatic valve head and check that the pin valve is not stuck. filling loop. Required fields are marked *, Underfloor Heating Trade Supplies Especially when it is extremely chilly out. Falling pressure: Check that the expansion vessel on boiler side is not letting by. By choosing underfloor heating, This could also be down to the insulation in your home – check this before installation. some of the water pressure, which should efficiently resolve this issue. pressure when the pump starts up. To test if this is the case, depress the needle in the Schrader valve on the underside of the expansion vessel. cause for the heating to be stuck on, as well as stuck off. It is also possible that the diaphragm may be empty of air, If your thermostat screen has no display and will not turn on when the power button is pushed, the thermostat could be wired incorrectly. If you find that the heating is coming on outside of the pre set times this is usually due to one of two valid scenarios. Underfloor Heating Troubleshooting. Keeping it on at a low temperature consistently will ensure that your home is heated faster when you need it. No. plumber. As an electrical issue it is best to contact a qualified electrician to resolve the problem. Read more about them in our Privacy Policy. leaks in the system can cause a loss of pressure. The underfloor heating should be tested and switched off 48-hours before installation of the flooring and remain off during installation and for 48 hours afterwards. VAT number: GB 156722794. You should consult a qualified electrician. Check if room control is required. This could be to do with an actuator, thermostat or wiring board. This is another one of those questions that people ask when they are exploring the option of having underfloor heating fitted, and it’s a good one too. The adhesive used to fix the vinyl or linoleum flooring should be sufficient to sustain the working temperature of the underfloor heating, up to a maximum of 27˚C. It Multiple Zones or Entire System is … The thermostat screen will light up and you can activate your floor heating system. Smart Underfloor Heating Thermostats & Controls, Become a heat pump installer and grow your business by 20%, contact a qualified electrician to resolve the problem, Isolate all of the UFH zones except for the zone that is not heating up, Connect a hosepipe to the flow valve on the manifold and connect to a cold mains tap, Connect a hose to the drain off point on the manifold and take out to waste, Turn the cold tap on, open both the taps, drain off point and the flow point and flush the water through that zone. Like any heating system, there may be times when underfloor heating (UFH) does not seem to be working as it should. As with any heating system, you should have your boiler regularly all. these issues are a result of electrical problems that will require the If the thermostat and temperature probe seems fine, you may need an electrician to come and check the system. Whilst some may require a warmer temperature, others may require a cooler temperature. Diaphragm damaged: it The isolation valve lever should be in line with the pipework on the manifold, in the open position. Check the brighness settings of your thermostat through the ‘Menu’ options and raise the brightness higher if needed. If an actuator has failed, this is most likely due to an electrical issue that could relate to the thermostat or wiring board. well as a loss of pressure. that if there is a problem, there is a quick and straightforward solution. you can resolve this efficiently by checking that the valves at either end of relief valve, the expansion vessel on the boiler or the boiler blow off Richard Weston, Your email address will not be published. electrical issue. Check that the main isolating switch supply is switched on. If your system uses wireless, battery-powered thermostats then it’s also a good idea to check the batteries. You can easily reset a thermostat by following the user guide provided. Hi guys a bit of help needed not done much with central heating before but been asked to have a look at one,the problem is the central heating pump overrun wont switch off so pump just runs and runs until power is turned off, any ideas appreciated, the plumber was … For 30 to 40 percent of underfloor heating systems, people opt for a separate room control, or in other words, the ability to set the temperature in different rooms.If this is a requirement, then apply an electrical control system, which lets you open and close separate groups. If you have a fault once the system is up and running, the first thing to check is the flow rate in the flow meters. When I call for heat for the underfoor (with rads off) the pump wakes, the zone valve opens and the underfloor fills up. The Speedfit Underfloor Heating System is designed to be installed into a solid floor with a screed. It could be that the boiler isn’t working at Refill the water side up to normal working pressure. 14 Round Meadow Rainow closed on the manifold: this is easy to check. boiler. We use cookies. If pressure stays high during pressure testing, even when the system is off, then pipework restriction is unlikely to be the cause. Check the temperature/pressure relief vale is not letting by to waste. Underfloor heating will work with most floor coverings; however, some floors work better than others. Is this true? The Company. You can use a silicone spray or a long pair of pliers to free the pin if it is stuck down. up. You should then connect We had heating setup to start at 3.30am and switch off at 6.30am with temperature to reach 20C. You can also use a pair of long nose pliers to try and free the pin before replacing the thermostatic head. Nu-Heat can help you to find the root of the problem – whether the cause is electrical or down to a failed thermostat or manifold part – to get the system up and running again. This indicates a more significant Is your underfloor heating not heating up at all? is that most architects choose underfloor heating systems because they are so Correctly setting up your underfloor heating temperatures The best idea to maximise the results of your heating system is to have 2 “ON” times with a comfort temperature and 2 “OFF” times with setback temperatures which is normally 4°c lower than your comfort temperature. Or why not call our technical team on 01404 540650? it is unlikely you will experience problems regularly. Even though each of these solutions advises you seek the A faulty actuator can also cause underfloor heating that won’t turn off and stays on constantly. If you want to ensure your heating works, then you can In this situation you will need to consult a qualified electrician who will check the wiring board connections and relays. problem with the system, and you will likely need a plumber or electrician. A qualified plumber is best to carry out this task. You merely need to unstick the pin. You are able to temporarily adjust the heating program by overriding or using the temperature hold feature. Next. you are adding value to your house, helping the environment, and ensuring an My email address is rickweston@btinternet.com There are a few ways that you can identify what is causing this: All of the above should be carried out by a qualified plumber. We hear this…, Underfloor heating problems and how to solve them(Updated for 2019). somewhere. Failure of the The hose that is attached to the valve should also be connected to a cold water supply. This issue requires Although electric underfloor heating systems are simple to install, things can go wrong during installation. You should also check whether the floor probe/sensor hasn’t failed, and is connected to the thermostat correctly. silicon spray or a long pair of pliers. Many of the above solutions apply to both water and electric systems – such as a faulty thermostat or electrical wiring problems. You should set your thermostat to the ‘longer’ setting to keep the heating on longer, which is done by moving the switch in the direction indicated on your thermostat. However, what is maybe more important to know You should be able to identify where there is The rest of our system and rooms seems to work fine. of the expansion valve. If your electric underfloor heating isn’t warm enough, you may need to adjust your thermostat settings or check the system’s power output. If you have any questions or concerns, just give us a ring! One of the After setting the basic parameters of the thermostat, select a steady temperature in manual mode for your first heating period to turn on the heating system. the thermostat will display an error message, either E1 or E2. Rather than a rise in pressure, you may find that the system is losing pressure. According to the trouble shooting guide the relay is closed and the current going to load. a leak by re-pressurising different zones of the system one at a time. Simply reset the thermostat following the user guide to clear the error. maintenance. Call us on 01404 540650 and our experts will be able to advise what to do. Blending valve pin An engineer It is a good idea to seek support If you are troubleshooting a Nu-Heat UFH system or your underfloor heating is still not working, you can always call our knowledgeable Technical Team on 01404 540650. With t… Cosytoes® are a well established British company that has been involved in the manufacture and sales of electric underfloor heating in the UK and Europe for nearly two decades. Insulation, lifestyle, and air flow around the area can also all have an effect. 2 April 2014 at 2:32PM edited 30 November -1 at 12:00AM in LPG, Heating Oil, Solid & Other Fuels 5 replies 11.6K views Purpose Panel, The Ultimate Electric Underfloor Heating Guide, What to Consider When Turning Your Cellar into a Liveable Space. try resetting the thermostat, clearing potential errors, before making the call We pride ourselves on our depth of knowledge and excellent customer service. Hi, Underfloor heating is now an essential lifestyle choice for any professionally designed room. The 4iE wont let me set above a certain temperature ? heating system should prove simple. You can now invest in your underfloor heating system knowing an electrician will be able to resolve this quickly. instructions for flushing through the pipes but note this is best done by a It’s best to consult a qualified electrician to check the circuits. And then again from 14.30 until 18.00. Macclesfield , Cheshire The tiler is coming tomorrow to finish off but the UFH engineer has raised a concern. Weekends: Closed. They will also check your If the actuator is stuck down, it can be freed using a silicone spray. Electric underfloor heating is more costly than water underfloor heating systems – which is why we recommend it for smaller rooms and not whole-house installation. advice of a plumber or electrician, none of these solutions requires report that it is something simple and easily rectified. Underfloor heating is a reliable system, and Remove the actuator and connect a hosepipe to About. Most are fairly simple to resolve by yourself: There is a small pin underneath each actuator. After installing the thermostat turn on the breaker. Here are some troubleshooting tips specific to electric UFH. Jump to electrical underfloor heating problems. If your radiators run off the same boiler as the underfloor heating, you’ll need to have a suitably qualified heating engineer install a two-port valve. Research & Development. If you come across this issue, it could be because: Again, this is an electrical issue and so a qualified electrician should be called. You can buy an underfloor heating cable repair kit, but this work should be carried out by a qualified electrician. correct manifolds. and you should seek the help of an electrician. This includes a quick look over the pressure relief valve, automatic air vent and expansion vessel. the hose pipe to a cold tap. Underfloor Heating Design Solid Floor Installation Principles. can test this by depressing the needle in the Schrader valve on the underside Filling loop left on: For example should I apply a fair amount of force to move the sticky pin and should I move it up or downwards, I assume that without a top electromechanical actuator the valve should be constantly open to pas hot water if the rest of the system requires heating. Consumer Terms & Conditions | Trade Terms & Conditions | Cancellation Form | Cookie & Privacy Policy | Product Warranties. blockage of some kind. As with a central heating system After all, some people may just want a nice warm floor in their bathroom but not be all that bothered about having UFH throughout the rest of the property. for a technician. You … Floors that work well include: solid wood, engineered board, laminate, ceramic tiles, carpet, vinyl, marble, stone, slate. This typically happens because the heating cable has been nicked or damaged at … Connect Restriction in the move, preventing stuck pins and damaged seals. noticed that more than one zone or even the whole system has stopped heating connection could be within the actuator, the thermostat or the wiring If an isolation valve is closed, it will be at 90 degrees on the pipework. info@underfloorheatingtradesupplies.co.uk, Pump Units/Valves + Actuators + Connectors, ThermRite Premium Output Dual A simple electrical test will clarify the problem. comfort. significant construction work to replace your heating – which is usually the As for cleaning, underfloor heating is a dream. First, let’s look at a few of the potential problems you may come across with water UFH, and how to go about solving them. benefits of underfloor heating is it is usually easy to locate when you need a Product Range. Many times the plumber that fits the boiler/radiators does not flush through the system and rubbish will get into the boiler pump, mixing valve and the underfloor heating pump. valves and pipes. the pipes on the manifold if it isn’t then it is stuck in the closed position – another hose to the drain off point on the manifold and take out waste. This is also a common In order to remove the air you will need to: Once the air bubbles have been removed you can then turn off the valves and the cold tap and disconnect the hose. Issue 1: The heating system will not turn on. up. How to remove E1 & E2 error codes from the Nu-Heat neoStat, How to remove error codes from Nu-Heat’s PbS thermostat. You will know if it is a thermostat setting error because You can also use a pair of long nose pliers to try and free the pin. through the system. to ask a plumber to carry out the task, to ensure pipes are connected to the You may also find that multiple zones or an entire UFH system is not heating up as it should. Helping you answer all your questions about Warmup’s range of underfloor heating systems and thermostats. What if my Warmup thermostat screen is black and won’t turn on? The When you have checked all the apparent potential causes, and you still The most significant concern raised by potential customers In winter months keeping the underfloor heating on will ensure faster response times when the heating is needed. Underfloor heating problems and how to solve them(Updated for 2019) Warm Water Underfloor Heating Problems. assistance of an electrician. If your heating is not coming on in a single area then there could be a problem wiring board/ faulty thermostat/ underfloor heating actuator problem: all To do this, refer to the UFH manual for the system as manifolds can vary. If it’s stuck down it can be freed using a silicone spray. Take out the mixing valve and clean it with hot water, flush the system before fitting the mixing valve back again. I have a thermonet programmer and underfloor heating system. switching off the pump, and if the pressure varies, then it is likely a Always check with the floor manufacturer before installing underfloor heating and … power on the wiring boards: there could be a problem with signals getting the flexible hose are in the closed position and that you have disconnected the Electric underfloor heating not working as it should? from an electrician for issues with the boiler and a plumber for problems with A faulty thermostat can also cause underfloor heating to be permanently switched on. stuck: as with the stuck pin in the actuator, this can be resolved with Relieve some of the water pressure via the pressure relief valve, then connect a foot pump to the vessel’s Schrader valve, pumping it up to 2 bar. is possible that the whole expansion vessel will need to be replaced if the Helping you answer all your questions about Warmup’s range of underfloor heating systems and thermostats. to the boiler, which will require the help of an electrician. main concern of most people considering underfloor heating. Single Zone is Not Heating Up. We’ve produced some setup videos to help you with this process for the neoStat and PbS. will be cold underfoot. This is another electrical issue that ought to be checked by a qualified electrician. Pump is blocked full of dirt. It’s also a good idea to check batteries if the system uses a wireless, battery-powered thermostat. You could When you bleed the pipes, the waste will drain away, the air will be dislodged and then you can refill the system. There could be some air trapped in the UFH pipework. The isolation valve should be in line with Refer to the respective programming manuals. This is because underfloor heating can take two to three hours to warm up, so it is best to not completely turn it off. The actuator is the mechanism that causes a device to operate. Jump to water underfloor heating problems You can check this quickly by Sorry, nothing was found for your search. have no joy, you will need the help of an electrical engineer. Your email address will not be published. How to use and programme underfloor heating thermostats 3131852. Most thermostat errors will be displayed on the face of the stat. you to contact an electrical engineer who will want to check your thermostat or resolve the issue without too much inconvenience. is as simple as pushing any blockage through a pipe. If neither of these works, it could potentially be an electrical fault, so a qualified electrician should be called. This guide is intended to When I turn the stat down the pump stop and the zone valve closes.... all good. This is a valve that controls the flow of water in a central heating system, particularly the water that goes from the boiler to other parts of the system. your wiring board. Check over the system for any leaks on pipework, manifolds and cylinder. If temp is 20C or above, heating won't switch on in its scheduled window. If the actuator has failed, it is likely that there is an home.