Category: Baxi Fault Codes

If you have a Vaillant boiler, you might have heard about a feature called anti-cycling mode. But what does it actually do? In simple terms, anti-cycling mode helps your boiler run more efficiently by stopping it from turning on and off too often. This saves energy, keeps your heating system working smoothly, and helps your…

Setting a boiler timer saves money and time by avoiding unnecessary heating. This guide covers how to set timers on digital and mechanical boilers, including Vaillant, Worcester, and Baxi. Why Set timer on Vaillant boiler? One of the main benefits of setting a timer on your Vaillant boiler is the ability to optimize your heating…

If your Vaillant boiler doesn’t have a thermostat or the one you have isn’t working, don’t worry you can still turn your heating on manually. This guide will show you how to use your boiler without a thermostat so you can stay warm. Why You Might Need to Use Manual Controls You might need to…

If you’ve got an Alpha boiler at home (combi or system), an annual service is one of the simplest ways to keep it safe, efficient, and reliable-especially through UK winters. Alpha themselves advise servicing every 12 months, carried out by a Gas Safe registered engineer. This guide explains: Important safety note (please don’t skip) A…

If your Vaillant boiler shows F61, your boiler has stopped for a safety reason. This fault points to a gas valve actuation/control problem. In plain English, the boiler’s electronics cannot control the gas valve correctly, so the boiler locks out to protect you. Vaillant F61 fault code means the boiler cannot actuate (control) the gas…

The Baxi E118 fault code indicates that your boiler’s water pressure has dropped below the safe operating level typically under 1.0 bar causing it to shut down. This common issue is usually quick and simple to fix by repressurising the system using the boiler’s filling loop. Most homeowners can safely resolve it themselves in just…

The Baxi E40 Fault Code is triggered when there’s an issue with the central heating return NTC sensor, a key component that monitors the temperature of water returning from your radiators. If this sensor fails or gives inaccurate readings, your boiler may not heat properly or could shut down for safety. This guide explains what…

If your Baxi boiler is showing the E78 fault code, it means there’s an issue with the water pressure sensor specifically, the boiler is unable to detect the correct system pressure. This can cause your boiler to shut down or work inefficiently, leaving you without heating or hot water. What Does the Baxi E78 Fault…

The Baxi E50 error code typically indicates a temperature sensor fault in your boiler, often triggered by overheating or faulty components. This guide covers the most common causes, practical troubleshooting steps, and the importance of involving a Gas Safe registered engineer. Whether you’re trying to fix the issue yourself or seeking professional help, this post…

If your Baxi boiler is showing the E55 fault code, it means there’s a communication issue between the boiler’s printed circuit board (PCB) and one of its connected components. This can cause the system to shut down as a safety precaution. Fortunately, in many cases, Baxi E55 error issue can be reset easily. Here’s what…