» 1. If you work on a boiler without this accreditation, it’s not just dangerous, in many cases, it’s illegal. One of the biggest problems with steam boilers that is the cause of complaints is water hammer in the pipes. Once these loose connections are secured, the signals will return to normal after a boiler reset. 2 October at 4:19PM in In my home (includes DIY) MoneySaving. Although there are many scenarios where the gas valve on your boiler can be fixed, that’s not always going to be the case. In turn, that’s going to result in intermittent operation of the valve, fault codes being displayed, and the boiler locking out. If 2-3 expensive parts in a boiler are worn, it makes sense to invest that cash into a new boiler, not an old one. When the valve gets stuck or seized it will either: When this happens, your boiler will show a fault code. So, the cost of parts is going to have a direct impact on the cost of the overall valve replacement. Boiler Replacement Promise: If it's under 7 years old and we can’t repair it, we’ll replace it. By using this form you agree with the storage and handling of your data by this website. If by calling an emergency engineer to come out and fix your boiler immediately, you may find if you require a gas valve, you should expect then to carry one unless they are full aware of the make and model and that you require a gas valve already as every company may have different terms. Main burner remains alight when … 4. If your boiler is 5 years or older (especially if it’s a lower quality brand), it’s likely the gas valve is beyond repair. A faulty For some faults, the boiler locks out to protect important boiler components from damage (for instance, lack of water, causing the pump to work harder than it should). If these connections are loose or damaged, that’s going to result in intermittent signals being sent to the gas valve. When you buy through links on our site, we may earn an affiliate commission. As you can imagine, a gas valve that’s leaking gas into your boiler isn’t safe at all. 6. Another frequent problem with gas valves, is them not closing properly. With Boiler Guide you can get free boiler repair quotes from engineers near you. Replace the wiring if necessary. 7. In this scenario, it’s likely the valve is beyond repair. There are repair and reconditioning kits available for boiler gas valves. The SE Water meter man has been back to look at it and said it is nothing to do with the meter. No electrical supply to burner. Faulty gas control valve. We know this sounds like an unlikely situation, but it happens! On/off switch is in 'OFF' position. Gas off external to boiler. Common Boiler Problems: Causes and Quick Fixes . In some cases, a Gas Safe engineer will be able to free the valve. If the fan isn’t operational, the air pressure switch feeds back this information to the PCB, and the boiler will lock out. 6. If you find a leak, you’ll probably need to contact a Gas Safe Registered engineer.Here are the main reasons for a boiler leak: Pressure relief valve – if your boiler pressure is too high, the pressure valve will pass water as a safety precaution. Your email address will not be published. As you do, it asks the gas valve to adjust to provide the correct level of gas. What, what could be wrong with your gas valve? installing a new boiler with a long warranty, rarely find that the repair costs are justified. If they find any section of wiring damaged, connections loose, or faulty components, they’re going to need to be replaced for the gas valve for be operational. You see, during normal operation, when a gas boiler receives the call for heat, the gas valve opens and releases a small amount of gas into a sealed combustion chamber via small “jets”. Should the leak be due to a problem with the pump seal, the seal could have worn out. Your boiler repair company will be able to take apart the valve and hopefully, they can free it to a point where it operates smoothly again. The gas valve on your boiler controls the flow of gas to the pilot light and burner. However, if the valve is showing signs of excessive wear, it makes more sense to replace it, as a safety precaution. Required fields are marked *. Worcester boilers installed from as little as £1,649? The gas valve … 9. Call a Gas Safe engineer and leave the fixing and resetting of your boiler, to them. HeatingForce is reader-supported. The most common boiler problems are low boiler pressure, leaks, a blocked condensate pipe, faulty valves and pumps, and internal limescale & debris. The PCB first detects the fan is operational, ready to expel dangerous flue gases via the flue, The gas valve opens to allow fuel to the burner and pilot light, The flow of gas continues until the PCB recognises that the NTC thermistor (flow sensor) has reached the desired temperature, Not open, and therefore not supply gas to the burner and pilot light, Not close, and gas will be letting by even if you’ve turned heating and hot water off. If the gas valve and 2 or more of these other parts are in poor condition and your boiler is out of warranty, it’s likely a boiler replacement is the most cost-effective solution, not a repair. Any fault code that relates to an electrical part (such as the gas valve) might not be as accurate as you think. It’s the fan in your boiler that helps to push dangerous gases out of the flue. The problem here, is the gas valve might still be stuck open. However, this is a key component that can lead to gas letting-by (in the case of a closure fault). Any boiler fault is potentially dangerous, especially any problem that relates to gas. Lochinvar boiler troubleshooting | All . Boilers are gas appliances and should be worked on by Gas Safe registered boiler repair companies. The valve needs to be tested after the boiler is reset. Check any gas valves in the line. If you believe there’s a risk of injury, leave the … So, always speak to a Gas Safe heating engineer, and don’t attempt to fix your boiler on a DIY basis. If all else fails, it’s likely the valve is faulty, or beyond repair. Because gas is involved, problems with gas valves are a major safety concern. Not only this, it’s likely that even if freed, the problem (sticking, as a minimum), is going to happen again soon. Resetting your boiler should only be done when the problem has been found and fixed. When there’s a problem, this supply can be interrupted, causing faults that relate to a lack of flame, loss of flame, or flame instability. Gas valves last for years, so once a replacement is fitted, it’s likely to outlast the boiler, unlike a repair on an excessively worn part. If you are experiencing an issue with your boiler, this guide to common boiler problems may help you diagnose the issue before reaching for the Yellow Pages and calling in … A specialist boiler repair company will be able to test the valve and monitor it after every adjustment to make sure that this is the problem. Whilst the valve was at fault, the PCB was too. If this wasn’t the problem, and they failed to put the valve adjustment back to its original setting, this is what could be causing the fault. As your engineer will already be testing the boiler’s gas valve with a multi-meter, it makes sense to test the PCB too. And once you turn heating or hot water off, it asks the gas valve to close. Like the gas valve, the PCB can be tested using a multi-meter. You can save money by resolving certain boiler problems yourself. 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