On inspection it repeatedly fires up when temperature on boiler shows a little over 30 degrees, runs for perhaps 10 seconds that raises the temperature to over 70 degrees and then cuts out. Didn’t stop the boiler, but turning down the min max on the boiler did. This issue can be caused by anything from faulty motorised valves, broken system diaphragms and airlocks, to low pressure or a broken thermostat. Also, what's the diverter valve doing? To determine whether this issue is caused by low pressure, you should check your pressure gauge to see if it is below 1. We recommend contacting a Gas Safe registered engineer to help solve this issue. If the problem with your thermostat persists, take a look at the instructions booklet for advice or contact the manufacturer for help. This issue is very common, particularly in the colder seasons. A sudden issue with your boiler is never ideal. In order to remedy the problem I had the ch pump replaced and the heat override thermostat in the boiler replaced less than a week ago. For a better experience, please enable JavaScript in your browser before proceeding. Find out how with our step-by-step guide. Noticed however that the pump continues to run, seems the only way to stop the pump is to cut the power to the boiler. Turn it off and on again. If your boiler is switching itself off automatically or is cutting out, the chances are it could be overheating. This can often be caused by a faulty boiler valve or more typically, a leak in the system. This is particularly common in homes where the condensate pipe is fitted externally or in an unheated space such as a garage. Banging, gurgling, rumbling or whistling pipes can be caused by a build up of limescale or air in the system. You could try to reignite the pilot light yourself if you are comfortable doing so. If it is, it may need repressurising. There could also be an issue with the way in which your system was installed. Save my name, email, and website in this browser for the next time I comment. Alternatively, there could be a deposit build-up or a draught blowing the light out. I have a Glow.Worm 30HXI boiler running on LPG. Ideal classic boiler cuts out after 2 mins? They can also create potential heating problems, which could mean forking out for expensive boiler repairs. Alternatively, there could be a deposit build-up or a draught blowing the light out. Older boilers may have a permanent pilot light which needs to stay lit in order to light the larger burner within your boiler. This fast cycling indicates that there is a problem to me that I hope someone can identify. You could also try positioning the device closer to the boiler and check for any interference that could be causing an issue. Check the best boiler brands, according to boiler owners and engineers, plus find out which brands to steer clear of. With smaller pipes you may need to keep your central heating cleaner for better circulation. Cold patches and other problems are usually caused by a build-up of air or sludge inside of radiators – this can cause heat to be distributed unequally. I'm sorry to revisit my thread but the hot water issue continues. Gas heating for new houses will be banned by 2025, the Chancellor has said, although gas hobs will still be allowed. The pump is OK, the thermostats seem to be working, the water is hot and the radiators are getting hot. Check your system’s pressure gauge and repressurise the boiler if it is set below 1. Below we list some of the most common boiler issues and outline their potential causes. It stays alight for about 2-3 mins and then turns off. I recently had a water leak in my house, so i had to turn off the mains and drain the system. When the power does come back, be sure to check your thermostat and timer clock – the power cut will most likely revert the system back to its original factory settings, not your specific settings. ... Well it's a modulating boiler so my theory is out. The only real way to solve this problem is to replace the thermostat to ensure your oven doesn’t heat up too much. Hi We have a potterton boiler sorry dont know the exact type off the top of my head, but it keeps cutting out and I have to keep pressing the reset button, and on occasion this doesnt solve the problem. How does it behave when the hot water is rapid cycling? If your boiler is completely failing to respond to your thermostat, the controls may be broken or old. You can usually identify if your boiler’s pressure is too low by taking a look at its built-in pressure gauge. This problem would explain intermittent starting. Just checked central heating as not run since last test a month or so ago. This can overheat the water, causing it to steam and boil – causing kettle-like sounds. Evidently the pump failed to start. The temperature shown on the boiler display very quickly drops back to the 30 or so degree level where the boiler cuts in again. Having smaller radiator pipes save on central heating cost and speeds up the heating process but can also have other problems where the flow is restricted and can be more prone to airlocks. The overheat nipple underneath the boiler clicks out. The boiler has been serviced. Alternatively, contact a Gas Safe registered engineer. Gas boilers will be replaced by low-carbon heating systems in all new homes built after 2025 in an attempt to tackle the escalating climate crisis, Philip Hammond has said. When the boiler is being overfired it will produce a lot of steam in a short amount of time which will raise the boiler pressure and cause the boiler to shut down for safety reasons. Luckily, you should be able to fix this problem quickly and easily by yourself. Living is here to keep your life moving! I agree to the Terms & Conditions and Privacy Policy. For some simple, easy tips on how to save money, see our guide to boiler controls and thermostats. UFH single zone and radiators with single thermostat and open Therm vs multi zone with. The next time it is due to come on it starts up as normal but then the same scenario - cuts out. I would have expected the pump to run for the whole time. One of the prime causes of your electric oven cutting out is the thermostat, this is a safety procedure that will protect your oven from getting too hot. An overheating boiler should be treated as an emergency and a Gas Safe engineer should be called in as soon as possible. Like a lot of mechanical faults and appliance breakdowns, sometimes all a boiler needs is a ‘soft reset’. Looking for a Heating Engineer? What to do: By bleeding your radiator or power flushing your pipes, you can remove limescaleand air from your system. It is crucial to remember that you should only perform checks on your boiler that are simple with minimum risk. Dryer Cuts Out After A Few Minutes Of Running. You are using an out of date browser. If this light keeps going out there could be a faulty thermocouple that is cutting off the gas supply. In which case you should contact a Gas Safe registered engineer as soon as possible. Potterton profile 60 boiler runs ok to radiators but on hot water only overheats operating overheat cut out. Learn more about what you heating system includes, or lacks, below. So, whether you know what the problem is or not, you can book an appointment with one of our local experts to diagnose the issue and get your heating back up and running effectively again. 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