Category: Boiler Fault Codes

If you’ve noticed the Baxi Boiler E09 fault code on your boiler, it’s signaling an issue with the gas valve connection cable. This fault can disrupt communication between your boiler’s gas valve and the main control board, potentially affecting the performance and safety of your heating system. While it’s tempting to try a DIY fix,…

If your Baxi boiler has displayed the E385 fault code, it usually points to an under-voltage issue. In simple terms, your boiler isn’t getting the right amount of electrical power to function correctly. This fault can be triggered by several factors, from minor wiring problems to more serious PCB (Printed Circuit Board) faults. In this…

If your Baxi boiler is showing the E156 fault code, it usually points to a low voltage (under-voltage) issue typically when the supply drops below 195V. This fault prevents the boiler from running safely, and while sometimes it’s a quick fix, in other cases it needs a Gas Safe engineer’s attention. In this guide, we’ll…

If your Baxi boiler is showing the E10 fault code, don’t panic it usually points to an outdoor sensor fault. This sensor helps your boiler regulate its performance by measuring the outside temperature. When the sensor fails or disconnects, the boiler cannot adjust properly, and the Baxi E10 fault code appears. In this guide, we’ll…

If your Baxi boiler is showing the E128 fault code, it means the boiler has detected flame loss during operation. Think of it like a gas stove flame going out while cooking it’s a safety feature designed to shut things down until the problem is fixed. While it can be frustrating, this error is actually…

The Baxi E117 fault code is a common error that indicates your boiler’s water pressure is too high. When the system exceeds its safe limit, usually above 2.5–3 bar, the boiler shuts down to prevent damage. Understanding this fault, its causes, and how to fix it can save you time, money, and stress. What Does…

If you own a Baxi 105 boiler and notice a flashing 30-degree light, it usually indicates a Baxi fault code signaling a flame failure or ignition fault. While it can be worrying, understanding the cause can help you decide whether it’s a simple fix or requires a professional. In this guide, we’ll explain what the…

The Baxi 800 fault code system is designed to help you quickly identify problems with your boiler. Whether you’re dealing with low water pressure, ignition failure, or an overheating warning, knowing how to interpret and fix these error codes can save you time, stress, and potentially expensive repair bills. In this guide, we’ll walk you…

If your Baxi boiler has stopped working and is showing the E02 fault code, don’t panic it’s one of the most common boiler issues and is often straightforward to fix. In most cases, the Baxi E02 fault code is linked to low water pressure in your central heating system. What Does the Baxi E02 Fault…

If your Baxi boiler is showing the 400 fault code, it usually means there’s a problem with water pressure or flow. This error can stop your boiler from working properly and leave you without heating or hot water. But don’t worry-many of the causes are simple to check and fix yourself. What Does the Baxi…