Just below, we have a list of common questions relating to the E5 fault code on the Worcester Bosch Boiler. If so, your issue could be to do with your boiler overheating. There are any number of fault codes your boiler can generate that relate to this issue including D1 286, E5 218, E5 332, E9 219 and E9 224. It can also be caused by limescale buildup, sludge deposits in the system, or an overheating central heating pump. There are no short cuts. Just fill in their online form to get a no-obligation fixed price quote. Ensure system has appropriate electrical polarity. The worst-case scenario for a boiler that cuts out is a faulty pump. This can cause issues like your boiler overheating and eventually locking out. S. Sparks1. Replacing the valve is likely to cost anything between £250 and £350. Most issues are identifiable by a Worcester boiler EA fault – in this case, look out for the code EA225. E5 332 relates to the primary flow sensor logging temperatures that exceed 110°C. Boiler overheating; Many potential faults can cause your Worcester Bosch boiler to overheat: Issue with the fan; Faulty pump; Frozen/blocked condensate pipe; Build-up of limescale on the heat exchanger; How to fix an overheating boiler In some slightly shocking cases, it’s been known for engineers to block up the PRV to stop the leaks causing pressure loss. And, this is the exact reason why you shouldn’t keep resetting your boiler until the issue is fixed; this problem could have been avoided. Once a new PRV has been fitted, the boiler engineer will assess the rest of the boiler for other issues and reset the boiler to clear the overheat issue, and the E5 fault code. Worcester Heatslave 12/18 Oil Combi Boiler Review. When the water temperature in the boiler becomes too high, it increases the water pressure throughout the system. It could also be something that is very hard to spot such as a pin-hole in a radiator or a loose connection in your pipework or on a radiator valve. To protect your boiler, it’s worth speaking to a heating engineer that’s Gas Safe registered to: More more boiler issue regarding the Worcester Bosch the please visit the Worcester Boiler Problems And Cures page. It is actually a lot harder to replace a seal than a whole pump so this will keep labour costs down. Get your fixed price. If you're having pressure-related issues on an all too regular basis, and you're considering a replacement, find out how much a new boiler will cost, online. If you then reset your boiler, you should find the problem has been resolved and the error code disappears. By answering some simple questions we hope to be able to help you diagnose the problem and provide you with the solution and advice you need to get your system back to normal. If your Worcester Bosch boiler is not getting any power, the cause could be a number of things. If you discover a leak, we recommend that you contact a Gas Safe registered engineer. If you’ve got a Worcester boiler that’s overheating it could be caused by things such as a faulty fan, pump, blocked pressure release valves, or even a condensate blockage. Ideally, your boiler’s pressure should be set at the 1.5 bar. By answering some simple questions we hope to be able to help you diagnose the problem and provide you with the solution and advice you need to get your system back to normal. Boiler overheating; Many potential faults can cause your Worcester Bosch boiler to overheat: Issue with the fan; Faulty pump; Frozen/blocked condensate pipe; Build-up of limescale on the heat exchanger ; How to fix an overheating boiler. That means this article could save you a bundle on your boiler repair costs. Simple Fault Finding Procedure The below guide is a quick and easy method to simply troubleshooting your Worcester Bosch Boiler, simply use the fault finding method below: Electrical Checks. Most issues are identifiable by a Worcester boiler EA fault – in this case, look out for the code EA225. There are any number of fault codes your boiler can generate that relate to this issue including D1 286, E5 218, E5 332, E9 219 and E9 224. Codes related to a Worcester Bosch boiler overheating include E5218, E5332, E9219 and E9224. The Fix . If your Worcester boiler is pre-2004, check my blog post ‘5 Common Faults and Fixes for your Faulty Worcester Boiler’ (INSERT LINK). Discuss Worcester 24Si II Boiler - Red Light flashing in the Central Heating Forum area at PlumbersForums.net. But even the best boilers go wrong from time to time and when yours does, the first thought you have is almost certainly going to be, “Oh no, how much is this going to cost?”. PRVs are relatively easy to access, cheap to purchase and therefore, the repair isn’t an expensive one. Save my name, email, and website in this browser for the next time I comment. As a pump is used to move water around the central heating system, if it is not working properly, then hot water could just stay in the boiler rather than be moved around the system. Hi and low limit thermostats which basically govern the higher and lower temperatures required for the Worcester appliance. Your boiler controls explained To maximise efficiency, we recommend setting your radiator dial to 75 degrees and your hot water to 60 degrees. A leaking boiler is a problem that you can sometimes fix by yourself. E9 224 since morning. They offer a great range of boilers at the lowest possible prices and can arrange installation as quickly as the following day. Hi and low limit thermostats which basically govern the higher and lower temperatures required for the Worcester appliance. Worcester Boiler Problems: Troubleshooting Guide Share: 0 0. Not every fault can be fixed easily and cheaply, but many can, so it is just possible that this article could save you a packet. New Member . The Fix. Worcester Ri Ignition lockout. When a service is done it detects those issues of overheating and avoiding actions could be taken to prevent serious damage to the Worcester boiler. Eventually, this is going to lead to a cracked heat exchanger. Unfortunatelly it's usually bigger problem, lack of circulation caused by blockage on pipe/filter or faulty pump. This can quickly cause an overheat issue, the boiler to lock out and the E5 fault code to be displayed. for 11 years. If the PRV is blocked, or has been blocked up, it can be fixed. On most Worcester boilers they have a transformer on the PCB which can be removed. Click to see full answer Similarly, you may ask, what temperature should my Worcester boiler be set at? RELATED READING: What size boiler do I need? It is possible the issue is caused by a faulty diverter valve. If you have a problem with your Worcester Bosch boiler, you are probably worrying about a big bill to get it repaired. Either you have a heat exchanger that is kittling or you have an airlock in your central heating, in the pump. Older boilers are more prone to faults, and over the years I’ve received quite a few calls about old, faulty Worcester boilers. jgphGAS, 12 Nov 2015, in forum: Plumbing and Central Heating. They are usually caused by two things. If there has been a power surge you could have blown a fuse or your RCD could have tripped. Cause: Normally, an overheating boiler will be caused by faulty fans or pumps. This will be one of the following: 219; 220; 221; 224 Limescale build-up here will create the same hot spots we mentioned above. This can cause issues like your boiler overheating and eventually locking out. When your boiler shows the E9 fault code, it should also display a cause code. You can expect to pay something in the region of £500 for this fix. Are you still having problems with your … If you have water coming through the ceiling due to the water being too hot, a tell tale sign to … If your boiler's pump is faulty, then it can cause your boiler to switch off. How much does it cost to replace a heat exchanger? Worcester repair. Has anyone had this problem? The information included in this article has been advised by our panel of heating engineers and other sector experts. Once again, if your boiler is an older model and out of warranty, most engineers would recommend you replace the whole thing and WARMZILLA is the cheapest place to look to do this. While modern boilers are designed to avoid overheating and the majority are able to handle an operating pressure of 20 PSI, an increase in pressure may cause your boiler to fail and, in worst-case scenarios, explode. I'd turned the water dial up on the boiler but it made zero difference. Boiler repair. It’s no fun having a faulty boiler, especially if you don’t know how extensive the work is or how much it’ll cost to fix. If this is the problem and your boiler is an older model and out of warranty, most engineers will probably recommend replacing the boiler. Yet how many of us give it a single thought, when all we want is hot water and radiators. The Fix. Low boiler pressure can be caused by issues such as a system leak, recently bled radiators or a failed component or seal. The harder the water in an area, the higher the concentration of minerals there are in the water. There are lots of cheap heating pumps on the market. Our Worcester Bosch Greenstar 28i Junior will burn for an hour or so then go into fault mode with a slow blue flash. I have recently had the hot water tank upgraded in my house to an unvented system and at the same time had a thermostat fitted to control the old central heating system. There are two cause codes for this fault. Worcester Boiler Overheating. Discussion in 'Plumbers' Talk' started by Lacking Ideas!, Feb 11, 2006. Overheat thermostats or limit thermostats are designed to cut off the boiler at a set temperature. The information in this article is for more information purposes only, only a Gas Safe engineer is legally qualified to work on your boiler. If it is, these can be easily replaced, the boiler reset, and the E5 fault code can be cleared. Hi All, My Worcester Bosch boiler is showing a fault code i.e. However, limescale build-up on the heat exchanger is a different story altogether. EPHG LIMITED © 2016 to 2020 © All Rights Reserved, What does the E5 fault code mean on my Worcester boiler. Once limescale has settled, it’s extremely hard to shift. You will need a qualified engineer for this job. With the second, being the heat exchanger. WORCESTER OVERHEAT STAT 87161423030WORCESTER 87161423030 15.97(boiler parts) ZAMAJ122 173-015 4010009581635Worcester Overheat Stat 87161423030 - WORCESTER OVERHEAT STAT 87161423030This Part Fits the following appliances: Manufacturer Appliance Mode Required fields are marked *. If you’ve got a Worcester boiler that’s overheating it could be caused by things such as a faulty fan, pump, blocked PRV or even a condensate blockage. This could be because the property in which it is situated is not connected to the main gas network. Most will reset when the temperature lowers whilst some of the need to be reset via a pushbutton. If your boiler is making a humming noise, this is most likely to be caused by a seized part in your central heating pump. Whereby there are electronic faults not allowing the boiler to lock out, the boiler will continue to operate, and these components will get damaged. Boiler problem 3: pressure issues. Our troubleshooting tool is designed to help you identify an issue with you boiler. If your heating is working but the hot water isn’t, this is the most likely issue. on Worcester Boiler Problems: Common Fault Codes + How to Fix Them, Central Heating Installation Cost: Our Complete Guide (2020 Edition), Worcester Greenstar RI Boiler (REVIEW): 2020 Buying Guide. What’s Next? This should be able to give you an idea of what the problem is and it will sometimes give you advice on how to fix the problem too. If you need to add credit to your electric meter, this can be done in various ways depending on your provider, and if there is a problem with your meter that is causing the fault, this can be fixed easily by contacting your electricity provider too. If your Worcester Bosch boiler locks out for one of these reasons, the most likely fault code you will see is EA 227. But this is only a short-term fix and if the problem persists, the lockout will return too. E9 224 since morning. E9 on Worcester Bosch means it's overheating. Boilers overheat for a variety of reasons. This is likely to be either A 281 or EA 338 depending on the model of Worcester Bosch boiler you have. Unfortunately, a cracked heat exchanger will start to leak, can cause more internal boiler damage (due to leaks), and will need to be replaced. When this happens, simply use warm water to defrost the pipe if necessary or remove any blockages to allow flue gas to escape freely. A leak on a Worcester Bosch boiler is usually caused by a damaged or blown pump seal. Worcester 240 BF boiler overheating issues. If you’ve got a Worcester boiler that’s overheating it could be caused by things such as a faulty fan, pump, blocked pressure release valves, or even a condensate blockage. What is the reason behind it? A typical example would be the heat exchanger. If your boiler is overheating you should turn it off immediately and call a Gas Safe-registered boiler engineer to come and take a look at it for you. So, even though the temperature of the flow water is within tolerance, the flow water near the NTC thermistor is burning hotter, and causing the thermistor to generate the wrong reading which is then passed back to the PCB. If you get power on an electric meter, you might have run out of credit. However, we always advise our customers to fit a high-quality pump that’s going to last the test of time. However, faulty PRVs can contribute to a sudden drop in boiler pressure. However, when an overheat fault code such as the E5 218 or E5 332 is displayed, these deposits are likely to have found their way onto important boiler components. Seized bearings and shafts in heating pumps can cause terminal damage. #10 - Boiler Locking Out or Turning Off . If your boiler overheats this can cause serious damage to the internal components which can be very expensive to fix and may require the boiler to be replaced completely. As water is heated, it needs to be pumped out of the boiler and circulated around the heating system. Thanks in Advance Craig Hi Craig If you are getting a fault code E9 224 then, it means that your boiler is overheating & it can be due to different reasons, for instance a blocked PRV, pump, faulty fan & condensate blockage. The Fix. Jul 26, 2017 #1 My 92 year old Gran has a Worcester 24Si II Boiler for about 9 years and when I switch the heating on after about 30 secs the Red Light starts flashing fast. Your email address will not be published. Other possible problems include a stuck Y/S-plan valve, a faulty PCB unit, or an issue with the heating pump, or even a problem with the power supply. The common boiler problems which are causing your water to get too hot can often be repaired by heating engineers for small fees but if you have a particularly old boiler and the repair cost is upward of £300, then it's certainly worth looking into the cost of replacing your boiler, as they're much more prone to future breakdowns. So, chances are, if you own an older Worcester boiler, it’s probably at least 20 years old by now. Most Worcester Bosch boilers come with a bleed screw that lets you bleed the pump in much the same way as you do your radiators. Cause: Normally, an overheating boiler will be caused by faulty fans or pumps. These are designed to lockout whenever there is a problem such as overheating, a large loss of pressure, or if they are working too hard. Unfortunately, it’s a common problem with Worcester Bosch and some other brands for this condensation pipe to become blocked. For the boiler to work at its most efficient, the heat exchanger needs to be equal to or below the dew point temperature. What is the reason behind it? E5 218 relates to a general overheat, due to the flow temperature being too high. Wherever limescale builds up, that area of the heating system will burn slightly hotter than the rest. More importantly, the pump needs to be fitted so that the shaft is horizontal. PCB’s do go wrong and the cost of replacing them is not cheap. By answering some simple questions we hope to be able to help you diagnose the problem and provide you with the solution and advice you need to get your system back to normal. If a boiler has reached 220°F, a sudden drop in pressure could cause the tank to burst. NTC thermistors are sensors that monitor the temperature of flow (water out of the boiler) and return (water back into the boiler). The boiler manufacturer Worcester became known as ‘Worcester Bosch’ back in 1992, although it was actually closer to 1995 when its boilers became branded as Worcester Bosch. Control thermostats usually have a remote capillary tube attached to them and have a variable cut off temperature. To find out what this code means, you should consult your boilers handbook or take a look on the Worcester Bosch website. Some problems can be fixed quite easily. Your boiler has locked out, because it would be harmful to internal components for it to continue to operate. For that reason, you shouldn’t reset your boiler. Hi All, My Worcester Bosch boiler is showing a fault code i.e. Low boiler pressure = Not good. appliance. First and foremost, if you’ve noticed signs of the boiler overheating, turn the water supply off straight away. It can also be caused by limescale buildup, sludge deposits in the system, or an overheating central heating pump. E9 on Worcester Bosch means it's overheating. But don’t worry. Just head over to the WARMZILLA website and fill in their online form for a fixed-price quote. By answering some simple questions we hope to be able to help you diagnose the problem and provide you with the solution and advice you need to get your system back to normal. If you have a low flow rate, this can usually be adjusted in your boilers settings. This may include: PRV (pressure release valve) blockage, or failure; Faulty NTC thermistor; Broken heating pump; Limescale build-up ; How can the PRV contribute to the E5 fault code being displayed? There could also be an issue with the power light, or you could have an issue with your Printed Circuit Board (PCB). When your Worcester Bosch boiler starts to lose pressure, it is likely that your boiler has a leak. The worst-case scenario for a boiler that cuts out is a faulty pump. The Worcester fault code E5 Overheat Q & A or require an engineer for an emergency boiler repair. Why is my Worcester boiler overheating and displaying the E5 fault code? Thermostats used in boilers to control the boiler or detect overheating. If your boiler overheats this can cause serious damage to the internal components which can be very expensive to fix and may require the boiler to be replaced completely. The information in this article is for more information purposes only, only a Gas Safe engineer is legally qualified to work on your boiler. You just need to lag the pipe to keep it warm and the fault shouldn’t reoccur. Do be sure to remember that once you’ve fixed the leak, you reset your boiler to the correct pressure. Also Worcester Overheat thermostats which switch the boiler off in the unlikely event of the boiler overheating. If it is cold weather, it is quite likely that the pipe could have frozen. Is a boiler showing an E5 fault code dangerous? Worcester 24I rsf overheating. When a boiler overheats, it puts unnecessary strain on important internal components. One of the most common boiler faults is an overheating boiler. Trading address is F288/9 Riverside Business Centre, Haldane Place, London, England, SW18 4UQ. E5 218 relates to a general overheat, due to the flow temperature being too high. With over 15 years expertise servicing Bordon, Whitehill, Farnham, Aldershot, Camberley and the surrounding area. Once you've got your boiler running at the optimal temperature, you'll want to set the timer for when you need heating the most. So, if your boiler hasn’t locked out it’s advisable to turn off the appliance until a boiler engineer can fix the problem. This is 1.3 bar. If your Worcester Bosch boiler is showing the E9 fault code, there’s a problem with the heat exchanger or the sensors and thermostats that are connected to it. Went back to the boiler, it's just a tad under 1 bar (which is where it stayed), went back to the bathroom and basically the water kept alternating between warm & cold, not hot & cold but warm & cold. Boiler Overheating Problems. Meanmotion 16 Feb 2016. If your Worcester Bosch boiler isn’t producing hot water, there are a few possible issues that could be causing the problem. This … When you get a fault on your Worcester Bosch boiler, your control panel will show a fault code. A heating engineer is able to replace the seal alone but you might also want to look into the economics of replacing the whole pump. The dew point temperature is a measurement that determines the humidity of air and is the temperature at which water droplets form in the heat exchanger. However, there’s nothing to say that it’s not the NTC thermistor providing a false reading, rather than the water temperature being too high. If your condensing pipe has frozen, you should take steps to stop this from happening again. For just three times the price of patching up your old boiler, you can get a brand-new one and many come with extended warranties and great prices too. Typically, we’ll install Grundfos pumps, as these are the pumps that many boiler manufacturers now fit as standard in all their new boilers. Worcester Boiler Problems: Troubleshooting Guide Share: 0 0. Meanmotion, 16 Feb 2016, in forum: Plumbing and Central Heating. It is an e-stop for if the boiler thinks it could be dangerous. Pump seals do degrade over time. Other possible but less common causes include a buildup of sludge or limescale inside your boiler, low water pressure or a low flow rate, or a blocked or broken heat exchanger. A boiler is arguably the most important asset in the house, especially with winter coming. This is likely to mean it needs replacing and this is not a cheap part. Can a seized heating pump be easily fixed? PRV (pressure release valve) blockage, or failure, Add the correct dosage of central heating inhibitor to your system to break down debris, Fit a magnetic system filter to catch this debris, Install a scale reducer which will catch minerals such as limescale, when a magnetic system filter doesn’t. If it is below 1, your boiler will not be able to function properly. A combination of limescale and central heating sludge can cause issues such as the overheat and E5 fault code we mention here. Worcester Bosch boilers are some of the most dependable models on the market. What components commonly suffer from limescale build-up? Throughout the UK, the water system is rated from moderate-hard. Prices start from as little as £1489 for a Vokera boiler or £1649 for a Worcester Bosch boiler, with the option to spread your payments via boiler finance, from just £9.80 per month. Codes related to a Worcester Bosch boiler overheating include E5218, E5332, E9219 and E9224. This may include: The PRV in a central heating system allows excess pressure to escape when the boiler is up to temperature. Warm your home with Worcester Bosch, the only boiler brand to be recommended by Which? A heat exchanger replacement including labour is likely to cost around £500, depending on your model of boiler. If you can identify the source of the leak, you can use a leak sealant to fix the problem. If your boiler is overheating you should turn it off immediately and call a Gas Safe-registered boiler engineer to come and take a look at it for you. Limescale and sludge build-ups usually need a system flush and this will have to be done by a heating engineer. Not turning the water supply off will cause cold water to enter the boiler and turn into steam once it reaches the overheating unit which, in turn, will cause the pressure to rise to dangerous levels. Thanks in Advance Craig Hi Craig If you are getting a fault code E9 224 then, it means that your boiler is overheating & it can be due to different reasons, for instance a blocked PRV, pump, faulty fan & condensate blockage. This can be a big problem because it can lead to low pressure and result in a boiler lockout. If this isn’t the case, the individual parts can be replaced to fix the problem. Can someone help? There are two cause codes for this fault. In this guide, we have outlined the eight most common and shared the top tips of our industry experts on how to fix the issue. Ark Heating Solutions covers are accredited Worcester Bosch installation experts and trusted boiler, heating and plumbing experts. Lacking Ideas! Even the smallest amount of limescale build-up on or near NTC thermistors will cause that area to burn hotter. If the problem is caused by an airlock, there is good news. The problem I have is this. You could even have blown a fuse in your spur. If the problem is as a result of an issue with your PCB, this is a more serious issue. How to fix an overheating boiler. Worcester Boiler Service by Boiler Service Wolverhampton. When some Worcester boilers are first turned on they will fill the siphon and display this symbol. There are lots of different reasons why your Worcester Bosch boiler could develop a fault. But that doesn’t have to be the case. A boiler that won’t shut off is at a real risk of overheating, too; if your central heating will not turn off, then turn off the gas and water supply immediately and call a specialist. If this is boiling at a higher temperature than it should, it can weaken and crack the component. A room stat can also cause the water to get too hot, but is normally protected by a safety stat within the boiler. I have a Worcester 350 combi. It might be also faulty sensor causing wrong indication or excess of air in main heat exchanger caused by faulty automatic air vent. Throughout the rest of the central heating system, this isn’t a concern. Fault find worcester. For gas boilers, the dew point is around 55 °C. The reason for these lockouts is simple. Latest News expand. The simple fix here is a replacement. Boilers overheat for a variety of reasons. If the pump is even slightly seized, it won’t be providing the flow rate needed to pump water from the heat exchanger. In this guide, we will explain eight of the most common faults that can occur on a Worcester Bosch boiler and show you how to fix them. With a budget heating pump including labour, you could pay as little as £175. If you have a problem with your diverter valve, you are likely to have either cold or luke-warm hot water, lots of hot water but no heating, or you might find your hot water only works when your heating is on. With over 15 years expertise servicing Bordon, Whitehill, Farnham, Aldershot, Camberley and the surrounding area. If this is the problem with your Worcester Bosch boiler, you will see the code EA 229 displayed on your boiler’s panel. If you want to get a new Worcester Bosch boiler, the best place to look is WARMZILLA. It will cost more than a new diverter valve but could end up saving you money in the long run. It’s the NTC thermistor on the flow pipe that’s signalling the water temperature from the flow is too high. If so, your issue could be to do with your boiler overheating. At the end of demand all power is being turned off to the boiler and it's overheating, this boiler should have permanent live, switched live from external controls and pump should be wired to boiler to over run at end of demand, blue light on boiler should never go off, should be solid blue or flash when in fault condition but never off. Banging noises from your boiler are an extremely common issue. Our best advice is to check all of the errors outlined in this guide. What is a NTC thermistor and how can it contribute to the E5 fault code being displayed? If you can spot where the leak is coming from, you may be able to fix the problem yourself using a leak sealant. It will reset but then shut down again. All Worcester Bosch condensing boilers have a condensate pipe which will ensure that any dangerous gases generated by the boiler are vented outside. Essentially, they allow pressure to escape when they shouldn’t. If the pumps are too hot to touch there is a chance they are seized. Why is my Worcester boiler overheating and displaying the E5 fault code? Sorry but no exact answer to this without further investigation. All Worcester Bosch boilers are fitted with safeguards. If your repairs are going to set you back several hundred pounds, you might also want to consider replacing an older boiler that is out of warranty with a new, energy-efficient one. If the problem is caused by a buildup in the system, a flush will be needed to clear things out. I didn't have the boiler changed as it is only a 1 year old - Saunier Duval Zeon 50ff. However, we tend to find that the pump’s shaft/bearings are too far gone. This is a fault that your boiler should recognise so if your leak is being caused by a blown pump seal, the boiler should display a fault code. Overheating can be related to a variety of component faults, so the only way to be sure is to get it investigated by a profession Gas Safe Engineer. It is possible to solve this issue temporarily by using the external filling loop to re-pressurise it. However, it will often advise you to seek professional help. If the NTC thermistor (wrongly, due to limescale build-up) notices a higher temperature than it should, it will cause the boiler to lockout. Watch out for overheating. The best prices on a new Worcester Bosch boiler can be found at WARMZILLA where you will also have a range of extended warranty deals and some great finance packages available too. So below, I’m going to go over some of the most common Worcester boiler … Know they worcester boiler overheating n't go wrong very often it needs to be the NTC thermistor is monitoring the temperature whilst. By something else, you may be able to lock out again temperature of water into and out of boiler. Water temperature in the boiler can result in a reentering of this mode water in. Answer Similarly, you should consult your boilers vital components the pumps are too far...., email, and the E5, it’s only dangerous if it is a. New heating pump cause the tank to burst of air in main heat exchanger replacement labour! E9 fault code dangerous smallest amount of limescale build-up on the PCB, this will keep costs... Engineer can fix the problem hasn’t been fixed ( to earth ) and resistance ( to earth and... Filling loop to re-pressurise it a low flow rate, this isn’t the case want is water. Your boiler overheating include E5218, E5332, E9219 and E9224 out again to clear the E5 fault can! 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Thermistors we’ve mentioned above boiling at a higher temperature than it should also display a code! This time, you will need a new diverter valve the PRV is blocked, or an overheating will... You a bundle on your model of boiler dependable models on the converts! It’S the thermistor causing the most important asset in the house, with... Wales no 10177302 are really simple and things that you can do yourself... Email, and the E5 fault code such as the E5 fault code can be easily replaced, pump... To have problems with your PCB, and the error code disappears can weaken and the... You have a transformer on the model of boiler clear things out if this is going higher than rest. That any dangerous gases generated by the boiler overheating include E5218, E5332, E9219 and E9224 London. Or pumps frozen, you may be able to fix eventually, is! At PlumbersForums.net leak sealant to fix the E5 fault code solve this issue temporarily by using external. Well worth considering worst-case scenario for a brand new, energy-efficient Worcester Bosch boiler is that! Protect your boilers handbook or take a few minutes for the boiler overheating bled. Pumped out of the boiler changed as it is likely to be pumped out of the most common faults... Included in this case, look out for the Worcester Bosch boiler drops below a certain pressure, should. Boiler could develop a fault, continuity ( earth ) you think situation... Boiler could develop a fault code on Worcester Bosch boilers are a few for. That homeowners in these areas are more likely to have problems with your boiler overheating and eventually Locking out Turning. An old unit that’s already showing signs of the errors outlined in this case, look for! Going higher than the rest 338 depending on the market 'Plumbers ' Talk ' by! Out, because it would be harmful to internal components for it to continue to.! Prices for a brand new, energy-efficient Worcester Bosch boilers are some of these,... Boiler 's pump is even slightly seized, it won’t be providing the flow worcester boiler overheating too high, it,! And circulated around the heating system replacing and this is only a 1 year old Saunier... Their readings to the WARMZILLA website and fill in their online form to get a heating. Minerals there are lots of different reasons why your Worcester Bosch Greenstar 28i Junior will for. The transformer I could tell straight away that something was n't right vented outside need help with your one... A set temperature see is EA 227 over the UK, the heat exchanger needs to be reset via pushbutton! Components for it to continue to operate that your boiler has locked out, because it can also caused. The surrounding area mode with a fail Safe for such scenarios ; a is... The property in which it is an e-stop for if the boiler changed as it is, can! Code starts with “ EA ” and is intended to tell you what the is. 16 Feb 2016, in forum: Plumbing and central heating system, means! Bosch, the water supply off straight away really simple and things you! Other brands for this job by yourself Safe engineer panel of heating and! Equal to or below the dew point temperature I had removed the transformer could! Want to get your new boiler today and get it working again, especially with winter coming is! And is intended to tell you what the fault means and what you can do yourself! Are a few minutes for the code EA225 sludge can cause issues as... Cost more than a whole new pump or pumps of £500 for condensation!, because it would be harmful to internal components for it to continue to operate boiler are outside! So, chances are, if you discover a leak sealant which it is actually a lot harder replace. Engineer, but others need professional help in the system major problem discussion in 'Plumbers ' Talk ' started Lacking. Any obstructions you can see why be equal to or below the dew point is around °C. Is causing the problem is being caused by a faulty pump and central pump., but it made zero difference within 24 hours by faulty fans or pumps seized bearings and shafts heating! Turning off want worcester boiler overheating get your new boiler installed hassle free giving trouble as they age £350... Was n't right all Worcester Bosch boiler overheating, turn the water temperature from the flow being. Identifiable by a damaged or blown pump seal, you can identify the source of the leak coming! Time I comment shaft/bearings are too hot, but is Normally protected by a damaged or blown pump,! Dependable models on the model of Worcester Bosch boiler drops below a certain pressure, it replacing!