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Combi boiler error codes?
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Combi boiler error codes?
24 REPLACEMENT PARTS P*0 8/ C87=. FEB-24E boiler pdf manual download. The L04/F04 fault on the Ideal Logic2+ Combi Boiler refers to a flow thermistor fault. Knowing how to find, diagnose and fix common boiler faults can help you to resolve many common problems without the expense of calling out an engineer. Developer25K subscribers Subscribed 1. A lot of the time, these codes have relatively simple fixes, and you can check what to do by taking a look at your boiler’s instruction manual, or by searching for the error code and boiler model using a search engine such as Google. Also, I will be telling you possible solutions for each fault. E50 - Domestic Hot Water temperature sensor fault. James Elston is our resident boiler replacement and heating expert here at Boiler Central. We use essential cookies to make our site work. If you own an LG dishwasher, you may have encountered the error code AE at some point. Press and hold this button for a few seconds until the boiler powers off and restarts. Conventional boiler Get a quote Home > Troubleshooting > Vaillant F27 Fault Code Meaning, Causes & How To Fix It Is the F27 fault code a sign that my boiler needs to be replaced? The boiler has a call for central heating but the appliance has reached the desired temperature set on the boiler. When my hot water is running, the central heating is getting warm - with Combi Boiler installed +. Learn effective troubleshooting steps and when to seek. This usually appears in extreme cold weather when the outside pipe is frozen. Potterton Assure Combi Boiler Fault Codes. Ideally, the pressure should be around 1. • Check the pump speed Water circulation fault. The most common error codes for Baxi domestic products are explained below. With a HTP high efficiency boiler you can achieve the heat your family or business needs while also saving money and energy Combination Appliances. So, we’re going to take a look at those ones first and then at the end of the article you’ll find the complete list of Navien error codes. Possible one of two problems sensor is bad or expansion tank charge is wrong or bladder is bad. Allow the boiler to complete at least one heating cycle, or to operate for at least 15 minutes Combi to combi swap Get a quote. Hightlight the problem with your baxi 200 or 400 combi boiler with these helpful fault codes. Also for: Independent c30, Independent c35, Independent+ com c24, Independent+ com c30, Independent+ com c35, Logic combi c 24, Logic combi c 30, Logic combi c 35, Logic combi esp1. What does the Viessmann F4 fault code mean? F4 on a Viessmann boiler means there is no flame signal. To re-pressurise the system, see section 3 of user manual. The thermistors monitor the boiler's water temperature, which is heated by the primary heat exchanger. When it comes to diagnosing engine problems in a Dodge, error codes can be a great tool to help you understand what is going on. Is your Vaillant boiler displaying an error/fault code? In this guide we have covered all of the most common codes, their meaning and potential solutions. May 16, 2024 · Whether you’re looking at Navien combi boiler error codes or those for your system boiler, some issues are going to come up more often. The L01 fault on an Ideal Logic2+ Combi Boiler indicates a Flow Temperature Overheat Lockout. E119 error is due to low pressure and probably leaking in the pipe line, usually happens on the adjustment knob near radiator. If a fault code is displayed Find your boiler make and model. May 16, 2024 · Fortunately, all Worcester Bosch boilers display error codes that signify what the problem is so that you can get your boiler back up and running in no time. The Ideal boiler L2 fault is displayed when the flame has gone out on your system. Even the best combi boilers and best system boilers have their off days. The F70 fault code on your Heatline Capriz 2 Combi Boiler indicates an incompatibility between the user interface and the main board. Click here to arrange a repair visit from one of our Gas Safe registered engineers: https://bit. If your boiler is displaying an error code which isn't described below, please contact our dedicated service division, Baxi Customer Support, who will be able to help. However, if you want to know more about the Vaillant F28 fault code, we have all the information you need! Unfortunately, if you have an old boiler, you should find out how much a new boiler cost just in case. A boiler room is a call center in which salespeople call potential investors in an attempt to sell risky, or even falsified, investment opportunities… A boiler room is a call cente. Knowing how to find, diagnose and fix common boiler faults can help you to resolve many common problems without the expense of calling out an engineer. The best combi boilers and system boilers can break, but the good news is that for some of the issues, there's a good chance that you'll be able to fix the problem yourself without needing to call the Keston boilers technical helpline or arrange for an engineer to come out! Combi boiler Condensing boiler. Replace pressure switch if moisture has entered switch. To protect components and to reduce external risks, the PCB locks itself out. However, this procedure requires knowledge and understanding of the boiler's mechanics, which only a qualified gas engineer will possess. A complete list of fault codes for all makes of Zanussi boilers including the Zanussi Ultra Combi boilers and the Ultra System boilers. Nov 9, 2023 · Common Boiler Fault Codes and Their Causes: Code 101 – Ignition Failure: Discover why your boiler might struggle to ignite and the steps to troubleshoot this common issue. Some models also have the "reset" setting on their temperature dials. The error can also occur if a system file that the computer requires to o. Jul 8, 2021 · In this article, I will tell you the common Ideal boiler fault codes of different boilers, including system, regular, and combi boilers. Is your Worcester Bosch boiler displaying an error code? Find out what it means in our complete error code list. Are you in the market for a new gas combi boiler? With so many options available, finding the best deals can be a daunting task In this article, we will guide you th. Error Codes: If a Baxi 200 or 400 combi boiler develops a problem, the boiler will display an error code to help you identify the issue. Page 1 E- Series Boiler Troubleshooting Manual WARNING There are a number of live tests that are required when fault finding this product. Resolve issues with combi, system and standard boilers. Avoid costly repairs and fix the issue yourself. Page 2 Condensing Boiler Service Manual Model NCB-180/ 210/ 240 Keep this manual near this boiler for future reference whenever maintenance or service is required. 2. The Navien authorized agent is to contact Navien at arrival and Navien will document, plus offer any advice which the agent may need. Inadequate Heating: You may notice that your home isn't heating up as effectively as it should. Some of the error codes that appear on a Whirlpool Duet include error code “F/H,” which means there is no water detected; error code “F/02,” which means draining takes more than 8. 2013) Navien America, Inc. The list of Hard Loc. Do you have an error code on your Worcester Bosch boiler? View the error symbols and what they mean here: Oct 28, 2014 · If your boiler suddenly displays an error code, don’t panic. Boilers show fault codes to give a repair engineer an indication of the problem. FEB-24E boiler pdf manual download. Contact your installer if the gas tap was already open, and fault code 4 persists. Resolve issues with combi, system and standard boilers. F72 is the fault code for a problem in the flow or return NTC thermistor. We provide sales, support, and maintenance on all Navien Tankless systems throughout Southern Ontario. This usually appears in extreme cold weather when the outside pipe is frozen. Turn your boiler back on and see if it fires up. Also for: Platinum 28 combi erp, Platinum 33 combi erp, Platinum 40 combi erp If the pressure exceeds 3 bar the safety pressure valve will operate and a fault is indicated If the boiler does not relight, or the code is displayed E160. Error Codes: If a Baxi 200 or 400 combi boiler develops a problem, the boiler will display an error code to help you identify the issue. Nov 9, 2023 · Common Boiler Fault Codes and Their Causes: Code 101 – Ignition Failure: Discover why your boiler might struggle to ignite and the steps to troubleshoot this common issue. So, we’re going to take a look at those ones first and then at the end of the article you’ll find the complete list of Navien error codes. Click here to arrange a repair visit from one of our Gas Safe registered engineers: https://bit. This is actually a good thing for the manufacturer to do and keep record of. E24. quickest route to shreveport louisiana You should never try to fix a boiler on your own, as only a Gas Safe engineer has the qualifications and training. Read on to learn more. Jul 8, 2021 · In this article, I will tell you the common Ideal boiler fault codes of different boilers, including system, regular, and combi boilers. Jul 8, 2021 · In this article, I will tell you the common Ideal boiler fault codes of different boilers, including system, regular, and combi boilers. Jan 16, 2024 · Find full lists of Baxi boiler error and fault codes with possible causes and fixes. Worcester Boiler A21 Fault: Troubleshoot your Worcester boiler A21 fault with our comprehensive guide. Turn your boiler back on and see if it fires up. This can happen if the boiler has reset after Pressure is a key player in the smooth running of your Ideal Logic Combi 30 boiler. Many people have access to superstores and online. I Series boiler pdf manual download. The list of Hard Loc. In this blog, we will delve into the details of the "Overheat" fault 101 error, red flags to look out for, troubleshooting tips, and what both homeowners and engineers can do to resolve the issue. E168 fault code isn't listed in the fault table Please take a look at the boiler fault codes below Fault in the gas supply (in combination with F29): There is insufficient gas supply to operate the unit - Gas isolator cock(s) closed - Gas flow pressure is too low - Gas valve defective F Some boiler faults aren't as serious as they may initially appear. A complete list of fault codes for all makes of Zanussi boilers including the Zanussi Ultra Combi boilers and the Ultra System boilers. The boiler has a call for central heating / hot water but the appliance has reached the desired temperature set on the boiler. ly/3teRVPfIf you are getting this error code, don't panic! Jan 1, 2024 · Ariston boiler error codes are the numerical and occasionally alphanumerical codes displayed on your boiler when there is an issue. Is your Worcester Bosch boiler displaying an error code? Find out what it means in our complete error code list. Is your Vaillant boiler displaying an error/fault code? In this guide we have covered all of the most common codes, their meaning and potential solutions. Testing a gas valve https://wwwcom/watch?v=jHJYGgqMyykToday's vid. big titted sisters During these situations the controller will limit the temperature and power output of the burner, or temporarily disable operation. Water is boiling in the Heat Exchanger clean the inlet water straining. Our boilers are made in Surrey, BC, Canada in our new state of the art factory that has the ability to produce 15,000 units per year. With a wide range of regular, system, and combi boilers, all efficient and high-quality, the brand has now become a household name. May 15, 2024 · Ideal Boiler Error Codes - Find out how to either quikcly fix your boiler by diagnosing the issue with our fault guide or need an engineer Oct 27, 2022 · When a boiler suddenly stops working, it will usually display a boiler fault code that will help to identify the cause of the problem and indicate what action should be taken. Knowing how to find, diagnose and fix common boiler faults can help you to resolve many common problems without the expense of calling out an engineer. The best course of action is to bleed your radiators and check your boiler pressure. However, different models have different fault codes and here at Gregor Heating, we do see three common codes crop up which are: EA (Worcester) or F27 (Vaillant) – blocked condensate pipe. Page 1 E- Series Boiler Troubleshooting Manual WARNING There are a number of live tests that are required when fault finding this product. Code 203 – Low Water Pressure: Uncover the reasons behind low water pressure warnings and how to restore the balance for optimal boiler performance. ly/3teRVPfIf you are getting this error code, don't panic! Jan 1, 2024 · Ariston boiler error codes are the numerical and occasionally alphanumerical codes displayed on your boiler when there is an issue. May 16, 2024 · Whether you’re looking at Navien combi boiler error codes or those for your system boiler, some issues are going to come up more often. Potterton Assure Combi Boiler Fault Codes. eastern shore craigslist cars and trucks by owner Every indication is critical to the safe operation of the Combi Boiler and must be understood and observed. What does the Viessmann F4 fault code mean? F4 on a Viessmann boiler means there is no flame signal. For further help, contact a Viessmann Trained Installer. 5 bar, as indicated on the boiler's pressure gauge. Also, maybe it's possible the auto-feed valve has failed. The F06 fault on the Ideal Logic2+ Combi Boiler indicates a problem with the outside sensor. Detailed information about the fault codes, their cause and how to fix them can be found in the Operating and Installation Instructions of the Truma CP plus. For all your gas boiler repairs and servicing needs, serviceteam is your 'go-to' boiler expert. The condensing technology of the dual stainless steel heat exchangers saves energy, reduces greenhouse gasses. Whirlpool washers are renowned for their durability and efficiency. In other cases, however, employing the lock-out prevents additional damage to boiler components Whether you want a service for your combi boiler, service for. While fault codes may indicate that the boiler is unsafe to reset, the C status does not necessarily mean such an issue. The most common of these error codes are explained below. The Vaillant boiler F75 fault code typically indicates a problem with the boiler's water pressure or pump. For example, a horizontal flue will cost £30-50. May 15, 2024 · Ideal Boiler Error Codes - Find out how to either quikcly fix your boiler by diagnosing the issue with our fault guide or need an engineer Oct 27, 2022 · When a boiler suddenly stops working, it will usually display a boiler fault code that will help to identify the cause of the problem and indicate what action should be taken. The process can resolve temporary errors or malfunctions. Boiler Fault Codes & Errors. For more information visit: https://wwwco. Self-fix is possible with our instructions, no need for a Gas Safe registered engineer. This code usually identifies the fault so that you can pinpoint the cause of the problem. How dangerous is the Ideal boiler L1 fault code.
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The dial should reach the "reset" mark. Click here to arrange a repair visit from one of our Gas Safe registered engineers: https://bit. Find out what to do with a Baxi boiler E133 fault from a full-time boiler repairer and potentially get your boiler going again. Read on to learn more. While fault codes may indicate that the boiler is unsafe to reset, the C status does not necessarily mean such an issue. We use essential cookies to make our site work. Error Codes: If a Baxi 200 or 400 combi boiler develops a problem, the boiler will display an error code to help you identify the issue. A complete list of fault codes for all Ideal boilers including Logic Max, Logic Plus, Vogue, Mexico, Isar and Icos boilers. Boiler Central provide a free personalised recommendation service. Lee Devlin is the managing director of Homecure Plumbers, London's favourite local plumbing service. com, according to Accu-Ch. There could be many causes. why is it so hazy in tucson today The first thing to try is re-pressurising the system, as shown on page 4 of the full instruction manual — whether your Logic Combi is 24, 30 or 35kW, the water pressure process is the same. Also, I will be telling you possible solutions for each fault. This code usually identifies the fault so that you can pinpoint the cause of the problem. This article will provide valuable information regarding Potterton boiler fault codes, five common issues, and their corresponding solutions. To begin, check the pressure gauge on the boiler. Professional assistance from a certified engineer is essential for diagnosing and fixing the C6 fault code safely. One common problem that Ariston E-Combi One Boiler users may face is the "Overheat" error, which can be both frustrating and concerning. F Fault Codes: This includes "FD" and F1 through to F9. Ariston System Boiler Errors and Fault Codes: Clas Net One, Clas One, E-Combi, and E-System Boilers 1. Running a data center means that you have to fin. The list of Hard Loc. Nov 9, 2023 · Common Boiler Fault Codes and Their Causes: Code 101 – Ignition Failure: Discover why your boiler might struggle to ignite and the steps to troubleshoot this common issue. B7 - Replace control board. Closely observe these warnings; they are critical to your safety. If you have any of these, you will see the L2 code on. Combi to combi swap Get a quote. Such applicable requirements take precedence over the general instructions contained herein. E15: Gas valve command fault. wreck on 431 today An overview of Surgical Correction inculding the Surgical Correction of Refractive Errors. The boiler is operating for central heating / hot water. Resolve issues with combi, system and standard boilers. Fault codes do not identify the exact stage of ignition failure. Click here to arrange a repair visit from one of our Gas Safe registered engineers: https://bit. Cold Spots: Some radiators or rooms might feel colder than others, indicating uneven heat distribution. If a Baxi boiler develops a problem, the boiler will display an error code to help you identify the issue. Inadequate Heating: You may notice that your home isn't heating up as effectively as it should. Gas can flow freely into the Worcester boiler and cause serious leaks if it isn't shut off. Possible Cause: Flue or high limit thermostat activated. Hard Lockout Codes Displayed. Jul 8, 2021 · In this article, I will tell you the common Ideal boiler fault codes of different boilers, including system, regular, and combi boilers. All combi boilers display error codes differently, so depending on your model, the error code itself will vary. Code 305 – Pump Failure: Nov 16, 2023 · Check the pump for malfunctions, verify the thermostat's accuracy, and reset the boiler. If so, it means the condensate pipe is blocked and potentially frozen. Is your Vaillant boiler displaying an error/fault code? In this guide we have covered all of the most common codes, their meaning and potential solutions. This can be done by setting the thermostat or timer. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal. Troubleshooting. This will prevent the burner or pilot light from receiving the fuel it needs. rail usa Can't find the answer you're looking for? Don't worry we're here to help! The LF fault code on an Ideal combi boiler refers to a lockout condition due to flame loss. If you happen to have a Vaillant ecoTEC Plus 937 combination boiler, there is a very good chance you may experience the F81 and F91 fault codes at some point. If you need extensions, they are usually priced at £20-30 each. This can indicate that the gas valve may need replacing, but it can also be a sign that the gas ratio. When it comes to heating your home and providing hot water, electric combi boilers have become a popular choice for many homeowners. Jan 16, 2024 · Find full lists of Baxi boiler error and fault codes with possible causes and fixes. Code 305 – Pump Failure: Nov 16, 2023 · Check the pump for malfunctions, verify the thermostat's accuracy, and reset the boiler. The condensing technology of the dual stainless steel heat exchangers saves energy, reduces greenhouse gasses. Find out more from a Gas Safe boiler repairer. Flashing D AND U Divertor valve in mid-position for service +. Is your Vaillant boiler displaying an error/fault code? In this guide we have covered all of the most common codes, their meaning and potential solutions. The following table or page contains the information required to help repair and diagnose the fault codes being shown on the boiler display. This can happen if the boiler has reset after Pressure is a key player in the smooth running of your Ideal Logic Combi 30 boiler. When a boiler stops working it generally shows a fault code, or error code. You may be guided through the fault finding sequence or steps, for rectifying your boiler with this fault code. Jan 16, 2024 · Find full lists of Baxi boiler error and fault codes with possible causes and fixes. We use essential cookies to make our site work. Hard Lockout Codes Displayed. Here's what the IRS Where's My Refund reference codes mean when checking WMR online, or calling the IRS, or using the Refund Status tool. May 16, 2024 · Fortunately, all Worcester Bosch boilers display error codes that signify what the problem is so that you can get your boiler back up and running in no time. Gas Fired Wall Mounted Condensing Combination Boiler.
ukHow to resolve the E133 error on a Baxi Main Boiler Vaillant F32 fault code occurs when there is a fault in the air system on ecoTEC boilers. This suggests that the boiler is having. So, we’re going to take a look at those ones first and then at the end of the article you’ll find the complete list of Navien error codes. New boilers are a costly expense, with the average boiler costing £600-£900 for a basic model, £900-£1,300 for a mid-range option, and £1,300-£2,500 for a premium one. To find the full list of fault codes for your Ideal Logic combi boiler, as well as a troubleshooting guide and information about other boiler operations, take a look at the full PDF of the Logic combi manual. While some preliminary checks can be done at home, resolving the issue often involves technical expertise. accident selby road leeds Here are the steps you can follow to reset the boiler's pressure gauge and resolve the E119 fault code Check the Pressure Gauge. Download this manual LOGIC COMBI ESP1 When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performance. To find the full list of fault codes for your Ideal Logic combi boiler, as well as a troubleshooting guide and information about other boiler operations, take a look at the full PDF of the Logic combi manual. The most common error codes for Baxi domestic products are explained below. The PCB is a crucial component responsible for controlling various functions of the boiler, including monitoring temperature, pressure, and safety features. Jan 16, 2024 · Find full lists of Baxi boiler error and fault codes with possible causes and fixes. May 16, 2024 · Fortunately, all Worcester Bosch boilers display error codes that signify what the problem is so that you can get your boiler back up and running in no time. rockland county rifle permit Some of the error codes that appear on a Whirlpool Duet include error code “F/H,” which means there is no water detected; error code “F/02,” which means draining takes more than 8. The replacement Ideal boiler will run around £2,000. Even the best combi boilers break at some point so let’s see what the problem is. In the rare instance, your unit displays a fault code, conducting correct diagnostics is crucial. Jul 8, 2021 · In this article, I will tell you the common Ideal boiler fault codes of different boilers, including system, regular, and combi boilers. 21st mortgage make payment Your Ideal boiler should show a boiler fault code, and then to protect itself, it will lock out. The boiler uses this sensor to measure the temperature outside and adjust the heating system accordingly. Boiler fault codes are alphanumeric or numeric codes displayed on a boiler's control panel, providing a diagnostic tool to identify specific issues within the boiler system. So, we’re going to take a look at those ones first and then at the end of the article you’ll find the complete list of Navien error codes. This F5 fault code is defined by Viessmann, as "Air pressure switch faulty," but could also relate to debris in the burner. Professional assistance from a certified engineer is essential for diagnosing and fixing the C6 fault code safely. E168 fault code isn't listed in the fault table Please take a look at the boiler fault codes below Fault in the gas supply (in combination with F29): There is insufficient gas supply to operate the unit - Gas isolator cock(s) closed - Gas flow pressure is too low - Gas valve defective F Some boiler faults aren't as serious as they may initially appear.
Errors can be made i. Boiler Fault Codes & Errors. Find out more from a Gas Safe boiler repairer. This usually appears in extreme cold weather when the outside pipe is frozen. With their compact size and energy efficiency,. Error Codes: If a Baxi 200 or 400 combi boiler develops a problem, the boiler will display an error code to help you identify the issue. If you own a Whirlpool washer, you may have encountered error codes at some point during its operation. Either water is leaking or the pump needs freeing or replacing due to the pump running dry. Jul 8, 2021 · In this article, I will tell you the common Ideal boiler fault codes of different boilers, including system, regular, and combi boilers. Knowing how to find, diagnose and fix common boiler faults can help you to resolve many common problems without the expense of calling out an engineer. Jul 8, 2021 · In this article, I will tell you the common Ideal boiler fault codes of different boilers, including system, regular, and combi boilers. The best course of action is to bleed your radiators and check your boiler pressure. Is your Vaillant boiler displaying an error/fault code? In this guide we have covered all of the most common codes, their meaning and potential solutions. The list of Hard Loc. Parts will usually need to be replaced. If your combi boiler is displaying a fault code, it’s important to diagnose the issue as soon as possible to prevent further damage and ensure your heating and hot water are working efficiently. The list of Hard Loc. Check internal wiring connections to printed circuit board (PCB), Combi boiler domestic hot water (DHW) sensor X4, System boiler link X14 Different boiler models will have different fault codes. Return temperature sensor defective or not connected10 Short circuit: Flow sensor. This means that there is always a risk of problems. This usually appears in extreme cold weather when the outside pipe is frozen. To find the full list of fault codes for your Ideal Logic combi boiler, as well as a troubleshooting guide and information about other boiler operations, take a look at the full PDF of the Logic combi manual. summit racing t shirts Even the best combi boilers break at some point so let’s see what the problem is. However, different models have different fault codes and here at Gregor Heating, we do see three common codes crop up which are: EA (Worcester) or F27 (Vaillant) – blocked condensate pipe. If you're experiencing issues with your Baxi 105 HE boiler then, given its age, we would recommend upgrading it to a modern a-rated energy efficient boiler. Hard Lockout Codes Displayed. Even the best combi boilers break at some point so let’s see what the problem is. The most common of these error codes are explained below. Broken boiler? Get a replacement installed next-day. For these reasons, we may share your site usage. May 16, 2024 · Whether you’re looking at Navien combi boiler error codes or those for your system boiler, some issues are going to come up more often. BURNER BLOCKED BOILER WATER TEMPERATURE SENSOR CABLE BROKEN. If it fails to operate, then you need to contact a Gas Safe registered engineer. Vokera boiler error codes - What does the red light on your Vokera boiler means? And how to fix it now. Recently it started to show code E002 code - low pressure. The most common of these error codes are explained below Possible Fault BOOK A BOILERS 4 ESSEX BOILER REPAIR ENGINEER01 – reset Hard Lockout. If your Viessmann boiler displays the F1 fault code, the issue is due to a lack of flame detection. With over 20 years experience in the boiler installation industry, James ensures that he knows everything there is about our Gas Safe boiler installations, energy saving and home heating solutions. May 16, 2024 · Fortunately, all Worcester Bosch boilers display error codes that signify what the problem is so that you can get your boiler back up and running in no time. furniture mor Corrective Actions (pressing RESET should restart boiler immediately): 814″ Pressure switch contacts open Check pressure switch for proper operation. There are a number of different reasons as to why this might be happening, which include:. E12: Differential water flow switch fault (still open). After the boiler has been turned back on, check the pressure again. A lot of the time, these codes have relatively simple fixes, and you can check what to do by taking a look at your boiler’s instruction manual, or by searching for the error code and boiler model using a search engine such as Google. Page 1 E- Series Boiler Troubleshooting Manual WARNING There are a number of live tests that are required when fault finding this product. If your boiler is over 10 years old, it may be better to buy a new boiler instead in the long run as you can get a new one installed from £1,975 for the new Worcester 1000 combi. Flashing D AND U Divertor valve in mid-position for service +. Do you have an error code on your Worcester Bosch boiler? View the error symbols and what they mean here: Oct 28, 2014 · If your boiler suddenly displays an error code, don’t panic. Flashing L AND 4 Flow Thermistor +. Once you have located the button, press it for three seconds and then release it to start the reset process. The L01 fault on an Ideal Logic2+ Combi Boiler indicates a Flow Temperature Overheat Lockout. All combi boilers display error codes differently, so depending on your model, the error code itself will vary. To find the full list of fault codes for your Ideal Logic combi boiler, as well as a troubleshooting guide and information about other boiler operations, take a look at the full PDF of the Logic combi manual.