As is the case with most appliances, tampering with wires can be dangerous. 85 months. I did this with the boiler on and off, same result. 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). So, you can set it to switch off at, say, 11 p.m. every night and come on at 7 a.m. every weekday (and 8 a.m. at weekends). But a while later it turned the boiler off when turned down from 4 -3. Sep 7, 2007 #1 Over the last few days our central heating boiler has been acting very strangely indeed. Crazy boiler - off on off on ALL THE TIME! off off off on off off off on.. or is the light mainly on, then goes out briefly? Book a repair Get a quote for a new boiler 10. Checked the programmer and both heating and hot water were off, the boiler was still running. I have replaced the timer but it still keeps happening. Flicked the power isolation off, held the tester on the pump cables, switched the power back on and the lights lit up on the tester for a split second, then off again. Check your system’s pressure gauge and repressurise the boiler if it is set below 1. Boiler keeps shutting off I have a 140 000 BTU Olsen boiler, it ran fine for the first hour last night then started acting up. Original Poster. This will just prove if there is a possibility of a leak somewhere that you cant see, if it stops you have a leak somewhere if not will go to the next stage. Issues with your boiler’s wiring. 4. I have a problem with a Baxi Bermuda 57/4E back boiler which is about 10 years old. The needle on the gauge optimally should be located between 1 - 1.5 bar when the boiler is in an off position and has cooled down to room temperature. You can set the on and off times for every day of the week. Restarts after about 10 minutes for about 1 minute then shuts off again. The thermeter on it says that the water is hitting around 180 degrees. I have had a very good friend who is a registered boiler engineer but thought id get some other opinions before shelling out more money. Hi, I hope that some kind soul out there might help me with a Problem with a Worcester 24cdi combi boiler. Unstable flame is always a threat for boiler furnace explosion, which can lead to a large outage of boiler and loss. Discussion. ravenheatcsi85 boiler heating keeps firing up and then turning off but hot water is ok david goodwin April 2009: There is more help available. It just keeps trying to cycle, sometimes igniting for approx. on on on off on on on off.. pressure seems fine, 1.5 to 1.8 bar is ok With that boiler, the main heat exchanger surrounds the combustion chamber, so can't be easily removed to flush it. After turning it on, the boiler start to run under the same pattern: on and off every 30 seconds or so. is the light mainly off, then flashes briefly? Make sure all the rad valves are open. It’s an unpleasant, shocking sound, but rest assured that it’s not going to happen: kettling cannot make your boiler explode! Could that be where the problem is but I don't understand why a stuck boiler thermostsat would fire a boiler when controller is off. While this may not seem like a big issue during these warmer months, it is best to fix a boiler that keeps switching itself off before winter arrives so that you can guarantee it stays working when you really need it. Hello. Our boiler was doing that when we got an air-lock somewhere in the pipe system so the water was only doing a very short circuit. If you have a remote stat' that this needs resetting or if signal being interfered with, turn off internet hub/router for now. Im sure my thermostat is OK since I tried with 2 different ones. The above are things you can check yourself, any of the above would stop your boiler from staying on. It is 828E Turbomax Plus. Baxi boiler keeps firing up and going off every 3 seconds? A wiring issue could also be the cause for your boiler not turning off. All modern boilers come with a timer on them, usually on a separate panel that’s wired up to the boiler itself. I switched the boiler off and then on again and pressed i. We've had the boiler running for three showers and general washing and haven't had a problem with that. Actually, I'm not sure if it actually turns all the way off. Well if you have a combi boiler that keeps firing up randomly, then you need to think about it. ), then the boiler cuts off and keeps re-starting. None of the pipes leaving the boiler are getting hot when it does this. Mend - boiler, keeps, turning, off: Answers will appear here when the question above is answered. As long as it keeps on working properly and we have a constant supply of hot water and heat as required, there is little to be done in the way of maintenance, apart from the annual check. Other things it might be and will need a Gas safe engineer to … Boiler keeps switching itself off; Boiler is not responding to the thermostat; NOTICE: You can still get boiler quotes during the COVID-19 lockdown. Burnham gas fired boiler starts up, only to shut off after several minutes, flame and circulator. The radiators are heating up fine and there is hot water, so there is heat going through the system. According to the manual the light blinks green if warmstart is on if hot water is being requested. If your boiler is turning on but keeps going off, the pressure could be low or there could be a blockage that is inhibiting the system. Fault 4: Boiler not firing/Going into lock-out. Should have 1 rad without a auto thermostat valve so boiler can cool itself by firing up and pumping water through radiator. But before that you need to know about combi boilers and how they work. I set the temp at 76 F on the wall thermastat and 180 degrees for the boiler (heard that was the optium temp for efficency). Hi. ponymath. In more serious cases, big air bubbles start to pop and create such loud banging noises that it can feel like the boiler is going to fall off the wall. Alternatively, contact a Gas Safe registered engineer. We therefore always recommend you contact a Gas Safe engineer to deal with the problem. We had a short power cut in our street on Fri … It’s best to have an engineer come and take a … Had to turn the power to the boiler off to stop it running. Boiler firing intermittently - Any Ideas? ). Show More. It came back with a status code of S.31 and that is it. So the pump is not being powered up for some reason. boiler keeps turning off and on? ... 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. Turn off the cold supply into the boiler there is an on/off valve on the cold in at the top of the boiler. 2 Next Reply Author. Maintaining a good flame in a boiler is the key to a good boiler performance. Even it is the heating floor calling for heat, the boiler will burn gas for about 5 seconds before it gives up. Thread starter stevegreen; Start date Sep 7, 2007; stevegreen Well-known Member. 7 posts. My boiler keeps firing up even though the timer for hot water and central heating is switched to Off. There are many reasons that a boiler switches itself off, but here are just some of the common causes. So like the title said, my boiler keeps turning on and off. Radiators cold downstairs and room stat 20C set 21.5C. Water temperature on boiler is set too high. Boiler breakdown If your boiler is failing to fire up and just going into lock-out, it could be a problem with the PCB (printed circuit board), but you can check this by testing with a vault meter to see if electricity is reaching the PCB whilst still remaining unresponsive. If the heating on the boiler is set to 'ON', then if the thermostat is turned down to 15C, for example, the heating will still come on if the room temperature falls below 15C. After a few minutes of being on continually, it keeps firing up and then off again every couple of minutes until the room thermostat stops calling for heat. I know that the cylinder in the airing cupboard is very warm when the boiler is firing and cools down when I turn the boiler off. Hi there, First time posting so hope can be of assistance. We had to turn off every radiator and then turn each one on in turn in order to force the air through into the radiators so we could bleed the system successfully. If the boiler’s thermostat is faulty, it will allow the burners to stay on longer than it should, causing the heat exchanger to overheat. There are many causes that can contribute to boiler flame failure. Hence it has become a practice of all boiler designers to interlock purging the boiler with boiler start-up. What are combi boilers? It fires up, stays on for a few mins, goes off for a few mins + then does it again. (I suppose that is normal!!! I have a combi boiler + it keeps firing up when the heating + water are off. There is an eco setting for something, but this isn't on. The boiler thermostat didnt stop the boiler when it was reduced until is was all the way to minimum. If the boiler system pressure is lower than 1 bar your system should be re-pressurized, it can be done by following the steps below: 1.Find connections of the filling valve under the boiler 2. 30 seconds. 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