#1 - A leak in the system. HI, I don't know if this is a problem but I thought I would ask some advice. I am a Chemical Engineer and although it is many (many!) Vaillant condensing boiler ecoTEC plus? This may require a topping up of the water level. When troubleshooting your Vaillant EcoMAX boiler please follow the following logical fault finding procedure: Electrical Safety Checks. We have a Worcester boiler connected to a Megaflow pressurised system. Tour Start here for a quick overview of the site ... Why does my boiler keep shutting down and reigniting after a minute? Sharon Burns on 16th February 2017 at 7:19 am My boiler comes on even when the timer is in the ‘cont off’ position. It took a while to work out that the problem is what some plumbers call “bounce”. If you have a triple aquastat, it has 2 settings, a high limit and low limit which keeps domestic water hot. My vaillant ecotec boiler keeps cutting out and comes up on… Customer Question. The heating/hot water day starts at 6am, with a peak of hot water demand. It'll run the CH for 5 minutes, then turn off for 5 minutes, repeat. The boiler is switching itself off due to in-built safety mechanisms – if it did not shut down, then the boiler could overheat. This type of boiler has a sealed system tank, placed inside an airing cupboard, to provide hot water supply. Combination boiler or combi boilers come being one of the most common types of boilers used in UK for a reason. One of the most common problems that modern boilers face is the condensate pipe freezing during the colder months. Vaillant . 1) faulty air pressure switch. Submitted: 8 years ago. The most common causes if your boiler is constantly losing pressure…. I set the wall controls so that the heating would only come on if it was below 22 degrees (which it hasn't been yet) but noticed that the boiler is constantly making a noise. After all, it costs more money to start a system up than it does to keep it running. My vaillant ecotec boiler keeps... My vaillant ecotec boiler keeps cutting out and comes up on the wireless control box as BMU ERROR the boiler is only two years old and has been serviced as recommened this fault is getting progressively worse . Active 7 years, 1 month ago. my boiler keeps starting and stopping? 2) The ion rod is faulty. Boiler keeps losing pressure, even after being repressurised? If you do try this, photograph everything in detail on your phone, especially any cables, before you start, and make sure the photos are clear with respect to wire colours, connections, etc. If your boiler keeps losing time then you’re definitely dealing with a faulty timer clock. Sometimes they are fine, other times stone cold. Normal settings are usually between 120 and 140 on the low side and 160 to 180 on the high side. Also call an engineer if your boiler makes strange ticking noises on a regular basis or when starting up. Click to see full answer Consequently, why does my Worcester boiler keep turning off? I've moved into a new flat that has a vaillant boiler. If you’re finding that your combination boiler keeps tripping the RCD switch on your fuse board and tripping the electricity, it could be a sign of a fault or leak within your boiler system. My central heating comes on via the timer and runs for about 30 minutes, then it shuts down for a minute, runs for 2 minutes, shuts down for a minute, runs for 2 minutes. If it is too low, then increase the pressure until it is restored to the correct level. It is ,indeed a very critical operation because the variation in temperature and pressure may lead to thermal stress resulting in cracks of tubes. heatingforce says: January 4, 2018 at 2:39 pm. Ask Question Asked 7 years, 9 months ago. EcoMAX 613, 618, 622, 635, 824, 828 and 835 Condensing Boilers Quick Fault Finding Procedure. Since I started working from home a month ago, I noticed that my boiler kept starting up for a couple of minutes, then stopping. Here's how to fix it! Discussion in 'Plumbers' Talk' started by koups, Jan 18, 2015. koups New Member. Boiler keeps coming on then stops. Your search stops with Vaillant system boilers. the boiler keeps starting and stoping so only get hot water for a few minuits. When your system is starting, stopping, starting, stopping, and so on more frequently than it should, it is going to burn through more energy than it should. Lack of water flow If the boiler keeps shutting off, it could be due to closed valves, air caught in the system or a broken pump.If there is enough air in the system to cause your boiler to switch itself off, it should be obvious when you start bleeding your radiators, as plenty of air will gush out of them. The combi boiler was fine for a week. 1. Troubleshooting. I changed the 3 amp fuse in the electric switch and pressed the test button in the consumer unit. It may seem odd to want to stop your boiler from doing what it was designed to do. Noticed however that the pump continues to run, seems the only way to stop the pump is to cut the power to the boiler. Also during the winter the radiators operate sporadically. It was also very annoying, because we try hard to keep our energy usage and carbon emissions to a minimum, and this was clearly wasting energy. I have noticed in the last week that, when i put temp up to switch radiators on, or switch the hot water on, the rads or water get hot (mabye 20-30 mins? Viewed 11k times 4. If the pressure drops below a certain level the boiler will not fire (start). Combi and system boilers need a minimum pressure within the system to work. Mend - boiler, keeps, starting, stopping: Off the top of my head i can think of 3 possable reasons. Reply. How do I stop my boiler from making noise? We'll show you why it happens, and how to fix it. A new vaillant ecotec plus combi boiler was installed in my 3 bed house after having issues with my condensing boiler and tank. If it is a cold start boiler it should only fire on a call for heat. The boiler then fired up and the fault F22 was no longer showing. Hi. Show More. MoneySaving Newbie. It just seems to stop. In the case of Worcester boilers, their fault codes start with EA. I'm left with just cold water coming from the hot tap. If your boiler is losing pressure quicker, and more regularly than Manchester UTD lost league places after the departure of Sir Alex Ferguson, then something is not quite right. We subsequently estimated that it had increased our summer gas usage by about 10%. This issue can be equally confusing and inconvenient as it could cause your household to become too warm, wasting energy and impacting your energy bills. Condensing boilers like Worcester Bosch, have a condensate pipe. It got so annoying that I decided to turn the wall thermostat controls to 'off' but it still does it. It cuts off, about 5-10 seconds later, it starts up again, and keep repeating this process until i manually turn temp down or switch the hot water off to switch boiler off. Cheers, Jonathan. Any idea if there’s a fix I can attempt or is it engineer time? The boiler stopped working and showed fault F22 dry fire. If your appliance will not switch on, will not display anything on its digital screen, or will not fire up when you attempt to heat water or turn on your central heating, it is practically useless. 'Warmstart' feature on Vaillant EcoTec boilers - Heads Up (1 Post) Add message | Report. Reply. Then the radiators downstairs especially sitting room was very low on heat meaning heat is... New boiler and gas pipe - help This switch is a safety feature that stops the flow of electricity when there’s a current leak to earth. Most modern pressure gauges will be marked with the correct pressure level, although you may need to consult the manual. This fault could eventually lead to a more serious issue such as a boiler breakdown, so it’s best to seek out a solution as soon as possible. For modern dwellers who are already tackling space constraints and aren’t too keen on a bulky cold water storage tank, system boilers are a perfect choice. ... Only working sporadically for the past week, could this be an electrical fault. ), then the boiler cuts off and keeps re-starting. Then there is a single, continuous burn up until about 9.30am, by when the room temperature has crept slightly above the programmed temperature, so the controller stops calling for heat and the boiler goes off for half an hour or so. However, as the pressure drops, the boiler switches off and stops heating the water. Ways To Reduce Boiler Noise. Cold starting means starting off the boiler from a state of comparatively lower temperature and pressure than normal working values. 4 posts. If you find that you keep having to reset your boiler, it’s likely that there could be a fault with your heating system. If your boiler has boiler stopped working completely, it goes without saying that this is not a good sign. Leaks in the system will cause your boiler to lose pressure. Leaks can be very small and you may not be able to see them. If there is enough air in the system to cause your boiler to switch itself off, it should be obvious when you start bleeding your radiators, as plenty of air will gush out of them. Hi Rick, When the CH/HW is on, the boiler keeps starting and stopping (i.e. In other way we can say that cold starting is starting the boiler for the first time in its lifespan. Didn’t stop the boiler, but turning down the min max on the boiler did. How can I tell that […] If there is air in the system, then bleeding your radiators could resolve the problem. You’ll be able to find the cause of the fault by referencing the fault code, in your owner’s manual. A switch dropped down which I then pushed up. Vaillant combi boiler models, guide, comparison, parts, manual, drawings, help. My boiler does a similar thing. Modern boilers are far stronger and more resilient than their predecessors, and people get used to having central heating and hot water on-tap, but the simplicity of boiler operation belies the complexity of the appliance. Boilers stop working for a wide range of reasons. If the boiler keeps shutting off, it could be due to closed valves, air caught in the system or a broken pump. it not firing up at all for heating it a worchester comi boiler janet July 2012: There is more help available. The Worcester EA fault code will give an indication of the problem. 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