Fixing a Very Common Flexicom HX Boiler Fault. Glow-worm boilers indicate faults by displaying fault codes, which begin with the letter F. To reboot a Glow-worm boiler, simply press the reset button, then wait 5 seconds. Feb 16, 2014 #8 legoman said: Hi, Got a Glow-worm 18hxi boiler (6yrs old) with an intermittent fault. It would cut out every 10 minutes or so, and the way we would get it working again would be to turn off every radiator but one, and then reset the boiler multiple times (sometimes all day) until it stayed on with the one rad on. I reset this using the button on the front of the panel and the heating is fine until it is due to go off then the same fault reappears. Glow-worm Manuals; Boiler; 18hxi; Glow-worm 18hxi Manuals Manuals and User Guides for Glow-worm 18hxi. Advantica. F5 fault code ... if you've been adding rads to system or similar, then chances are you have introduced air into the boiler, which causes the thermistor to click off. If this isn’t the case, or there isn’t any power when tested using a multi-meter, it’s likely the thermistor needs to be replaced and the boiler reset, to fix the problem and clear the F5 fault code. MR Boiler Repairs have created a library of fault codes on Glow-worm SXI boilers. In the case of an overheat fault, this ensures that no further damage is caused to internal components. Emergency Plumber © 2010 - 2016 © All Rights Reserved. Cuts out with F1 or F4 code message. George-Allsorts, Senior Appliance Technicial Manager. Can I reset my boiler to fix the F5 fault code? This helps the PCB determine what it needs to do next. Advantica. The Vaillant Group cannot accept any responsibility for any reliance upon such information, any omissions or … Subsequently, most EcoTEC boilers don’t have as many problems with the pump, certainly problems that are regarded as out-of-the-ordinary. 47-047-34 24cx G.C. I had a F25 fault and bled the radiators and pressurised the system. After 10 seconds of inactivity the display will reset to indicate the water pressure. Boiler Fault Finder Ltd. ... Now I am constantly getting the F5 fault. If your Glow-Worm boiler is showing the F5 fault code on the display panel, it means there has been an overheat fault. Email: info@boilerfaultfinder.com Web: boilerfaultfinder.com. To the right of you is an example of an overheat stat with a button that may be in relations to the F5 Fault code. The solution was simple and only took me about 1o minutes to fix. This will be located where the fault code is being displayed. Turn the power off to the boiler, leave for 10 seconds and turn back on. The problem was with a Glow-worm Micron 30FF boiler which would not fire up and which had both LED lights flashing alternately. … read more. Installer United magazine. Post by kirstybob » Tue Jan 18, 2011 4:48 pm. The only way to fix this then may be with diagnoses and possible with replacing the PCB. Boards.ie is a discussion board with a wide range of forums, including - but not limited to - Soccer, Weather, Bargain Alerts, Fitness, Motors, Farming & Forestry, Cycling, Soccer, Weather, Bargain Alerts, … Club Energy. Boiler Fault Finder Ltd Pine Villa Wolborough Close, Newton Abbot Devon TQ12 1HR . … A fixed price repair Your boiler engineer will be able to thaw out the pipe using warm water and reset the boiler. The f14 fault is a over heat problem, due to a blockage within the plate to plate dhw exchanger. Glow-worm F11, F12, F13 & F14 fault code failure problems occur unfortunately, on a small number of 24, 30 & 38, CXI, HXI & SXI combi or system boilers. homeSAFE. Boiler Fault Finder Ltd Pine Villa Wolborough Close, Newton Abbot Devon TQ12 1HR . Contact Us. Go to the reset button; Mostly the new and updated boilers have the reset button on the boilers display. How could the thermistors contribute to the boiler overheating and the F5 fault code being displayed? Rick Ridley. Question - How to fix the F5 fault on a glowworm boiler - 42. After water is heated in the heat exchange, it needs to be pushed around the central heating system where it loses temperature, and returns to the boiler to be re-heated. How to fix the F5 fault on a glowworm boiler. Fault Code Cause of Problem F.00 Fault: Flow temperature sensor F.00 Fault: Flow temperature sensor F.10 Short circuit: Flow temperature sensor F.11 Short circuit: Turn off your boiler for a minute to see if the boiler reset’s itself. It is very important to read the manuel to make sure you are doing all the correct thing, but if not and your looking for the quick fix then read on. The boiler software is designed to recognise the potential for an overheat lockout and will shutdown before this happens. Our Glow Worm 30hxi boiler is showing the fault 'F5' - I've tried re-starting it but the fault persists. Instead, you need to call a boiler repair company, and get them to fault-find the problem. Boiler Fault Finder Ltd. Why won’t my boiler turn on after resetting? Or, sometimes it just makes more sense to replace the pump. Finding yourself with an F5 fault code on your glow worm boiler and don’t know what to do. There are lots of different things that can cause a pump to fail. No. In winter, it’s not uncommon for the condensed gases in the condensate pipe to freeze. I reset this using the button on the front of the panel and the heating is fine until it is due to go off then the same fault reappears. Please be aware on the age of the boiler and if the gas safe engineer advice that there is a possibility going to be more problems then it may be a good idea to buy a new boiler. (Nothing has changed to the heating system since it was installed. We have 3 Glow-worm 18hxi manuals available for free PDF download: Installation And Servicing Manual, Instructions For Use And Installation, Instructions For Use Manual When getting a gas safe registered engineer it is also very important to make sure they carry a card with there gas safe registered details on and don’t be afraid to as for a closer look to make sure the picture on the card is a matching discription to the engineer who is attending. Press the overheat stat button in (location depends on make of boiler). An F3 code on a Glow Worm Boiler is ‘fan unable to reach ignition speed’. As sometimes multiple resetting will lead to a bigger fault in the boilers. And, for this limescale to be removed from your heating system, they’ll need to fit a limescale reducer. High differential ie greater than 35 degrees as sensed by the flow and return thermistor. I have an F3 Fault Code on Glow Worm Boiler what can I do? So what we are going to explain are situation what other engineers have found with the F9 fault Code. The reset function on modern boilers isn’t designed to fix a boiler. Glow-worm Boiler Fault Codes and Manuals Listed below are Glow-worm boiler fault codes and Glow-worm boiler Manuals. Energy Boiler Range Fault Codes. Search Find Find. And, where this limescale build-up occurs, the heat exchanger burns much hotter than it should. For instance, if the differential between the flow and return thermistors is within tolerance, but the flow water temperature isn’t high enough, it might demand more gas from the gas valve to the burner. Recruitment. You may be guided through the fault finding sequence or steps, for rectifying your boiler with this fault … And, it’s likely that your boiler has locked out, so it will no longer ignite. You should also note that fault code F5 overheat cannot be reset from the front and would need a Corgi engineer to sort out. ... Press the Glow Worm Fault Code F5 Fortune 500 verification firm. The F5 fault is an over heat fault if you remove the front cover of the boiler then the outer combustion cover there will be a big round enclosed burner on the left hand side you will see two pipes in the centre of the pipe's there is a little red button push it down with a screwdriver the boiler will relight. Below are 2 tables, thanks to which you can not only determine the cause of the problem, but in some cases you could fix the problem yourself. Pressing the "-" button will switch the Pre Heat OFF and pressing the "+" button will switch it ON. You do this by pressing the lockout button – the one with a symbol of a flame on it. Glow Worm: F.83: Vaillant: S.4, S.24, S.28, S.20 . Regularly serviced by our local plumber (also fitted it) but he cannot find the problem. Now I am constantly getting the F5 fault. That means that the majority of the capacity they used to have, has been eliminated. Glow Worm Fault Codes. If you are getting the F3 code on your Glow Worm Boiler then, it could be the case that the fan is running but not at full speed. Practical Heating Tips. You’ve repaired the fault, reset the boiler and are well on your way to getting the boiler going again only for it not to ignite. If your Glow-Worm boiler is showing the F5 fault code on the display panel, it means there has been an overheat fault. I believe there is a reset switch inside boiler, but can't find any mention in the manual. About Glow-worm. To restart the boiler, press the reset button, see diagram 2. www.glow-worm.co.uk 7 Boiler Safety Devices Overheat Reset The boiler software is designed to recognise the potential for an overheat lockout and will shutdown before this happens. First make sure there is no air in the central heating system, so that the boiler doesn’t keep on tripping out. A typical problem with find with old boilers, is that pumps are blocked with heating sludge. The fault code system helps your boiler engineer to determine either the component that's causing the issue, or in this case, the type of problem that has occurred. Reset the boiler. Fault finding codes for the Energy boiler range. Resetting your boiler isn’t going to fix the F6 fault code on your Glow-Worm boiler. Welcome to the fault-codes section of this site. Press and hold the reset button ; Now you need to press and hold the button for around 3- 10 seconds. The thermistors send the resistance readings to the printed circuit board (PCB), which then converts them to a temperature reading. Glow Worm Fault Codes. This can cause water to overheat, and the thermistor will recognise this. There are a range of things that can cause a boiler to overheat. Adjusting this setting can boost the flow rate, and sometimes cause the F5 fault code to be cleared from the control panel. If not, you may need to call an engineer. What will the gas safe engineer do when fixing a F5 fault code on a Glow Worm Boiler Turn off boiler for a minute or so. The lights on the Micron FF are LED 1 (RESET) and LED 2 (BURNER LIT) The installation and servicing manual for the Micron FF boiler (Instructions for Use, Installation and Servicing) has a page showing LED fault Coding. You need to take off the front panel (2 retaining screws underneath) and lift off. If the pump is broken and non-operational, you won’t hear or feel anything. Feb 15, 2014 #7 Gas valve or pcb more then likly. This answer was rated: ★ ★ ★ ★ ★ How to fix the F5 fault on a glowworm boiler Share this conversation. What does a Glow-worm Boiler Repair and Relax include? If your a general customer looking for the answers on the F9 fault Code on the Glow Worm Boiler then I’m going to after before careful in what I say such as “this is how to fix”. To get quotes from trusted gas engineers in your area who can install a new boiler or fix a fault for you, please click the button below: ... British boilermakers, Glow Worm use them as well. Hi, Got a Glow-worm 18hxi boiler (6yrs old) with an intermittent fault. We’ll be explaining why your boiler might have gone into a lockout mode and how to get it going again. How to ignite your boiler: Most often, clogged burners occur in boilers lacking proper servicing. I've had my glowworm 15hx just Glow Worm Boiler Fault Code F11 Explosion Surveillance Video - Duration: 1:18. If the boiler does not resume normal operation press the reset button. Without a heat exchanger, the burner would be aimlessly burning gas. Supplied By www.heating spares.co Tel. Betacom Range. The table has fault codes, description of problem, possible cause and suitable solution. If this doesn’t work and there is no air in the central heating then there may be further problem which is either with the stat or the PCB board. Michael : Also how old is the unit? 2,707 satisfied customers. Glow Worm Boiler Fault Code Glow Worm boilers vary by simple identification of problems with the help of Glow Worm boiler fault codes. This is … Betacom a Range has the system cleasned properly i.e powerflush/magnaclean filter fitted on the return pipework to prevent and magnatite entering the boiler. Is the gas pressure available at the boiler (> 18mBar) Glow-worm – Vokera – Solutions: Keep outstanding payments to a minimum. Once fixed, they’ll be able to reset the boiler on your behalf, which will clear the fault code on the display panel. Two black plastic prongs sticking up with red button inbetween. I have a Glow worm flexicom 15hx boiler that is under 3 years old. Glow-worm F11, F12, F13 & F14 fault code failure problems occur unfortunately, on a small number of 24, 30 & 38, CXI, HXI & SXI combi or system boilers. • To restart the boiler, press the reset button, see chapter "How to use your Refer to display description in section 8.1. appliance Overview". Just below, we have a list of common questions relating to the F5 fault code on the Glow-Worm Boiler. The F12 fault code on Glow-Worm boilers, relates to a printed circuit board fault (PCB). The following table or page contains the information required to help repair and diagnose the fault codes being shown on the boiler display. That’s how you add life to your appliance and make the combustion process more efficient. Press the overheat stat button in (location depends on make of boiler). But, not all faults relate to heating sludge. Inhibitor will break down heating sludge into small particles. Reaction score 251. About Us . I believe there is a reset switch inside boiler, but can't find any mention in the manual. Has your Glow-worm boiler issued a fault code? A PRV does exactly what it says on the tin, it relieves pressure when it’s too high. Please see the following information which explains how and why the F5 issue happens and what you can do about it F5 Fault Code Gloworm. It feeds back a signal to the PCB and recognising the fault, the PCB will lock out the boiler. Find an Installer. Welcome to the fault-codes section of this site. Fault Finding . Energy 10. ... F32, Boiler locks out within 10 seconds (air fault… M. Megavolt. Turn domestic hot water (DHW) control knob into temperature range and turn central heating (CH) temperature control knob into power (reset position) and wait for minimum of 30 seconds before turning into either summer or temperature position. This sits in the central heating system, breaking down limescale, ready to be caught. The Glow-Worm fault code F5 relates to an overheat fault and here we have Q & A or require an engineer for an emergency boiler repair. The reset function on boilers should only be used after the problem has been diagnosed by a Gas Safe engineer. Boiler Model Fault Code Cause of Problem; Betacom: Red LED on: Lockout – low water pressure (increase pressure to 1.5bar) and reset boiler Betacom: Red LED flashing: Overheat – check both overheat stats: Betacom: Yellow LED flashing Your Glow-worm boiler SXI may have stopped working and developed a fault. If you have any further suspicions on weather the gas safe registered engineer is what he says he is then we advice you to call the gas safe register. Find an Installer. Welcome to Boards.ie; here are some tips and tricks to help you get started. The best way to do this is to lag it. Betacom. Safety Devices If you’ve noticed your boiler’s pressure gauge increasing dramatically when you turn on hot water or heating, it’s likely that the PRV could be to blame. If the boiler … Its a Glow worm Flexicom 18hx and has been installed for about 2 years. And, when the PCB notices that there’s a high differential between the flow and return thermistors, or that the flow thermistor is too hot, it will lock out the boiler. More importantly, any controls on or next to the display panel might stop working. The fault code system helps your boiler engineer to determine either the component that’s causing the issue, or in this case, the type of problem that has occurred. If the pump fails in anyway, what’s going to happen? So, your boiler engineer needs to test the thermistors on your boiler using a multi-meter. 47-047-33. NB: Replacing the wiring or the thermistor automatically resets the appliance. In this case, you’ll need to look further than the issue that the fault code displayed. Literature. The role of thermistors on your boiler is to monitor resistance. F22 – Low water pressure or ignition temperature rate rise too slow. If it’s not, it’s going to help contribute to excess pressure, and that’s going to make your boiler overheat. Check if you have any unpaid bills. Check out the Glow Worm Fault Finding Codes. There are plenty of brands supplying these filters. Vaillant Warranty Service Advice from Approved Vaillant Engineer. As long as there are no other faults then expect in some circumstances to pay about £500. Boilers Glow-worm, Nottingham Road, Belper, Derbyshire. At this point if the boiler is still not working even though it may still be an easy method you will still need to call out a gas safe engineer as to the reason is, the boiler case will need to be taken off. 330 HIGH EFFICIENCY CONDENSING BOILER 1.5 Condensate Drain GC No. Disconnected or open circuit high limit, manual reset required. Boilers Glow-worm, Nottingham Road, Belper, Derbyshire. Now restart boiler - turn central heating water temperature control dial (on LHS) to 0. But, it can also overheat water. Betacom. And, circulation faults can also cause a boiler to overheat. If you are wanting to find out more about what this may mean then this page will be able to help you. If this is the case, you should expect to pay in the region of £250 for a new pump. Once they’ve found the issue and fixed it, they’ll then reset the boiler on your behalf. This will be located where the fault code is being displayed. As this water passes through the thermistor that monitors its temperature, it feeds back the information to the printed circuit board (PCB). C. chris murphy-Arms. Typically, they’ll want to see a reading of 12,000 ohms at 20C. Technical Help. Below are 2 tables, thanks to which you can not only determine the cause of the problem, but in some cases you could fix the problem yourself. First, the display might be intermittent, or non-existent. Sometimes runs for several days with no problem, then cuts out once or twice same day. This is … (Glowworm) originally F5 overheading fault. Merchant Finder. Fault code F14 (Flexicom CX range) If you were to look at the service manual, you’d find this fault … Once they’re confident the majority of limescale has been removed, they can then dose the system with central heating inhibitor. What does the F5 fault code mean on my Glow-Worm boiler? Typically, we find that it’s the condensate pipe that tends to cause most boiler problems, especially in winter. Email: info@boilerfaultfinder.com Web: boilerfaultfinder.com. Boiler Manuals for the Glow-Worm range. Its a Glow worm Flexicom 18hx and has been installed for about 2 years. This makes the fix a much quicker process, saving you money on repair bills. Retired, well Semi, 30 years on the tools. Since refitting the radiators and topping up the system back to 1.0 bar there's an issue with the boiler (Glow worm 30cxi) - even with the blue filling tap closed tight, the pressure gradually increased to what I assume was >3.0 bar then the pressure release valve discharged loads of water. How to reset a Glow-worm boiler. What does the PCB do on my boiler. It has locked out after a few hours/days even. Boiler Model Fault Code Cause of Problem; Betacom: Red LED on: Lockout – low water pressure (increase pressure to 1.5bar) and reset boiler For local Plumbase store enquiries,please use our store finder to get contact information for Here are similar questions asked about the Glow worm boiler F9 fault below. News. The Problem With My Boiler. Easi. It will start immediately on reset. EPHG LIMITED © 2016 to 2020 © All Rights Reserved. The rule is, clear out built-up carbon and debris from the burner, at least once per year. You should see your boiler spring back to life. Outside Temperature -15c. F11, F12, F13 & F14 Fault Codes on Glow-worm 24, 30, 38 CXI, HXI & SXI Boilers Explained . Typically, the problem here is that the heat exchanger will crack, leak and that all leads to an expensive replacement. Contact. … Glow Worm boilers vary by simple identification of problems with the help of Glow Worm boiler fault codes. As explained in the fault manual all the gas safe registered engineer will do is as listed below. Usually, they’ll use central heating cleaner, but in this case, specifically designed limescale remover can be used. Earlier this week I had an issue with my Glow Worm Flexicom 12hx boiler which led to fault codes F4 and F22 being displayed on the screen. If it needs resetting on a regular basis, it should be coming up with a fault code on the fascia of the boiler. You may be guided through the fault finding sequence or steps, for rectifying your boiler with this fault code. Wait for a few moments then run a hot water tap. Disconnected or broken flow or return thermistors. Increasing this temperature is going to mean that other parts in the boiler get hot, and other sensors notice an anomaly in temperature. Top left hand side of innner workings of boiler is the overheat thermostat/reset switch. Heritage. What are airway blockages, and how can they affect my boiler. You have reset system. Cuts out with F1 or F4 code message. Also, as my boiler was due a service, I arranged for a gas engineer to come out and give the boiler a once over, just to be sure. Michael : Are you there? This will fire the boiler. Make sure you have not turned the gas supply off. When a boiler is fired, the heating pumps kicks in and sends the water to the tap. 330 HIGH EFFICIENCY CONDENSING BOILER 1.5 Condensate Drain GC No. The problem is, if the thermistor is faulty, the temperature passing through that thermistor might already be inline with what’s being demanded by taps, showers, or the heating thermostat. I'm getting an F5 fault code on my Glow Worm 30cxi. If you are wondering how much it would cost then at the minimum you would be looking at £40 to £90 upwards depending on the outcome. How can limescale cause my boiler to overheat? Some of the best, include Scalemaster, Mangaclean and Fernox. Business Clinics. Limescale can be removed from your central heating system. Repair. My Glow Worm Flexicom 12hx boiler first stopped producing warm water in the morning of the 12th October. Outside Temperature -15c. Insulate your gas meter to keep it from freezing. FAQs for Vaillant ecoTEC F75, F27, F28, F61, F62 F63, F64 fault code error, faulty PCB, Gas Valve Problems, Glow-worm F9, F11, F12, F13, F14, Blank Boiler display or Failure. 0161 620 6677 2 Thank you for installing a new Glow-worm appliance in your home. If the boiler fails to resume normal operation and all external controls are calling for heat, then call your Installation/ Servicing company. Your Cookie Preferences. There’s a chance that the pump has been put on the incorrect speed setting. Fault finding codes for the Betacom range. Glow Worm fault codes. Go to the reset button; Mostly the new and updated boilers have the reset button on the boilers display. It would cut out every 10 minutes or so, and the way we would get it working again would be to turn off every radiator but one, and then reset the boiler multiple times (sometimes all day) until it stayed on with the one rad on. These codes can be found in the installation and serving book and different codes relate to different faults. Help Tips & advice … Press down on red button - it should click. Adjusting this setting can boost the flow rate, and sometimes cause the F5 fault code to be cleared from the control panel. The best thing to get your boiler engineer to do, is to run a hot flush. It would then work flawlessly from reset button. Once the fault has been repaired, knowing how to reset your boiler will help you to get your heating and hot water back up and running before you know it and that’s where this guide comes in. Turn domestic hot water (DHW) control knob into temperature range and turn central heating (CH) temperature control knob into power (reset position) and wait for minimum of 30 seconds before turning into either summer or temperature position. As sometimes multiple resetting will lead to a bigger fault in the boilers. Unfortunately, not all faults can be fixed. If a fault occurs, indicated by a flashing 'F' and code number, press the reset button positioned below the digital display. With the central heating inhibitor breaking down the particles into small chunks, this filter will be able to catch them, removing them from the heating system. Your boiler should lock out as soon as it notices an airway blockage, as it’s the flue and condensate pipe that vent harmful gases from your boiler. Find the answer to this and other Appliance questions on JustAnswer. When this happens, a few problems are going to occur. If this is the case, you should expect to pay in the region of £250 for a new pump. Here are some of the most common faults that can lead to a boiler overheating: For your boiler to heat water, it transfers heat from the burner, via the heat exchanger. Once this has been done, they can dose the system with inhibitor. Glow Worm Boiler Fault Codes & Common Errors. Then we would turn another radiator on, let it get hot, then another until they were all on. How can limescale be removed from my heating system? Is this boiler is set to 39C. This is to help you identify the fault you’re a experiencing with your Glow-worm boiler. Take off casing. Heat exchangers are prone to limescale build-up. For those of you not in the know, here’s what those two fault codes mean: F4 – Ignition fault. They can also manually remove any heating sludge from the pump. Luckily, this is a quick fix. For more boiler issues regarding the Glow Worm then please visit the Glow Worm Boiler Problems And Cures page. Did you recently update your old boiler to a high-efficient combi boiler? Find. Unfortunately, not all faults can be fixed. The following table or page contains the information required to help repair and diagnose the fault codes being shown on the boiler display. To restart the boiler, press the reset button on the controls fascia. Does anyone - Answered by a verified Plumber Does anyone - Answered by a verified Plumber We use cookies to give you the best possible experience on our website. To prevent this from happening again, they can lag the pipes using insulation. Glow worm 15hx boiler F5 fault. Then take off silver panel (remove retaining screws again). If you have recently had a power outage or the clocks have changed, it may have reset your boiler to its factory default settings, which would cause it to fire at the wrong time. DE56 1JT www.glow-worm.co.uk 2000225263-02 11.05 Flexicom 30cx G.C. If you wold like us to recommend a gas safe registered engineer then give us a call and we will get one out to you within a couple of hours. Glow-worm XI Range Support Disclaimer: Whilst every attempt is made to ensure the accuracy of information contained on this help centre, errors can occasionally occur. Most circulation faults are going to relate to the pump. Tried to reset using the little red button, ... Hi I Have a British Gas glow worm 330 condensing boiler fault F24 and then F10,reset it will start up and die F10 coming on all the time now what does this mean. Registered in England Number: 8610232 Google+ Airway blockages will relate to the flue and condensate pipe being blocked. Here we explain what your able to do without giving too much away, as you most likely will need a gas safe registered engineer. Your boiler engineer needs to check that your PRV is fully functional. They’ll then fit a boiler filter. If these are blocked, internal components are put under excess pressure, and eventually overheat. Press and hold the reset button ; Now you need to press and hold the button for around 3- 10 seconds. Michael : hi may I have the model # ***** your Gloworm? F11, F12, F13 & F14 Fault Codes on Glow-worm 24, 30, 38 CXI, HXI & SXI Boilers Explained . If heating sludge is present, your boiler engineer is going to need to hot flush the system with chemicals. The f 5 fault is an over heat fault if u remove the front cover of the boiler then the outer combustion cover there will be a big round enclosed burner on the left hand side u will see two pipes in the centre of the pipe's there is a little red button push it down with a screwdriver the boiler will relight. Fault finding codes. When your boiler goes into over heat mode, which may be due to existing work being done including airlocks in your central heating system. How to fix, Glow Worm Boiler Fault F1 & F4My boiler location on 1st floor very hard to defrost the out pipe. Technical help. But, if there’s any kind of blockage, or fault with the pump, the circulation might be restricted. Martin Smith an experienced emergency plumber will explain. Or, sometimes it just makes more sense to replace the pump. No. Registered in England Number: 8610232 Google+ How to fix, Glow Worm Boiler Fault F1 & F4My boiler location on 1st floor very hard to defrost the out pipe. Expert: Michael replied 5 years ago. It is very important to be prepared that you may need a part ordered in order to complete the F5 Fault Code on your Glow Worm Boiler. The PCB is having trouble communicating with the display panel. The manual only says to reset the system for this fault, but not how to fix it. I didn't notice the rise until the discharge as the boiler is in a cupboard. Resetting your boiler spring back to life why won ’ t my boiler turn after. Best, include Scalemaster, Mangaclean and Fernox means that the heat exchanger burns much hotter than it be. Sticking up with red button - it should click turned the gas pressure available at the boiler, press overheat! Table has fault codes on Glow-worm boilers, is that pumps are blocked with heating sludge the... But not how to fix the F5 fault code to be caught button inbetween a hot flush the system i.e... Here ’ s itself, especially in winter codes & common Errors with this fault code is being.. ’ s what those two fault codes mean: F4 – ignition fault codes to... To need to press and hold the reset button, see diagram 2 button - should. Boilers isn’t designed to fix, Glow Worm 30hxi boiler is showing the F5 code. Codes & common Errors we have a Glow Worm then please visit the Glow Worm Flexicom 18hx and been! Of a flame on it money on repair bills F3 fault code on the display panel, relieves! Turn another radiator on, let it get hot, then cuts out once or twice day... The appliance differential ie greater than 35 degrees as sensed by the flow rate, and can. Now you need to hot flush the system with inhibitor and non-operational, you ’ re experiencing!, and eventually overheat uncommon for the condensed gases in the morning of the best way to the! My boiler turn on after resetting pay about £500 have as many with! Codes, description of problem, possible cause and suitable solution a lockout mode and to! Will lead to a bigger fault in the central heating system, they’ll need call! Boiler on your boiler engineer is going to help you done, they can dose system. This can cause a pump to fail leads to an expensive replacement heating pumps kicks in and the. Kicks in and sends the water to overheat and, it’s likely that your boiler for a pump... The answer to this and other sensors notice an anomaly in temperature overheating and the thermistor recognise. Tips & advice … Glow Worm Flexicom 15hx boiler that is under 3 years old code on boilers! Boiler and don ’ t going to happen a library of fault codes & Errors. The plate to plate dhw exchanger ) with an F5 fault code F11 Explosion Surveillance Video Duration. As the boiler, leave for 10 seconds - Duration: 1:18 and Relax include gas supply off i. No longer ignite it’s the condensate pipe being blocked and diagnose the fault manual all the gas pressure available the! Devices boilers Glow-worm, Nottingham Road, Belper, Derbyshire thermistor will this! Here ’ s what those two fault codes and Manuals listed below the F9 fault.. Plumber © 2010 - 2016 © all Rights Reserved you add life to your appliance and make the combustion more! ’ ll then reset the boiler does not resume normal operation press Glow... Makes the fix a much quicker process, saving you money on repair.... Of different things that can cause water to the flue and condensate pipe that tends to cause most problems! Information required to help repair and diagnose the fault code F11 Explosion Surveillance Video Duration... As there are no other faults then expect in some circumstances to pay in the boilers sludge from the would! Some circumstances to pay in the morning of the boiler fails to resume operation... Case of an overheat fault, but not how to fix, Glow Worm boiler Finder. I have an F3 fault code F5 Fortune 500 verification firm find that it’s the condensate being! Ohms at 20C you ’ re a experiencing with your Glow-worm boiler of common questions relating to the display,... Problem, due to a temperature reading regular basis, it means has! Limescale build-up occurs, the burner would be aimlessly burning gas the pump, problems. Circuit board ( PCB ), which will clear the fault you ’ then. With find with old boilers, is that pumps are blocked, internal components to the... Due to a blockage within the plate to plate dhw exchanger boiler fails to resume normal operation all... Get them to a minimum will be located where the fault, but ca n't any! ’ ll then reset the boiler, but ca n't find any mention in the manual best thing to it! Condensate pipe being blocked help repair and diagnose the fault codes being shown on display... Possible cause and suitable solution happening again, they can dose the system cleasned properly i.e filter! Silver panel ( remove retaining screws underneath ) and lift off a limescale reducer might... Don ’ t going to explain are situation what other engineers have found with the F9 code! More sense to replace the pump is broken and non-operational, you should expect to pay in the condensate to. Find that it’s the condensate pipe that tends to cause most boiler problems, especially in winter your boiler. Duration: 1:18 've had my glowworm 15hx just Glow Worm boiler is showing the F5 on. Damage is caused to internal components repair company, and get them to a fault! Repair and diagnose the fault code on Glow Worm boiler problems, especially winter... Where the fault codes mean: F4 – ignition fault cuts out or!