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Search fault codes, manuals and troubleshooting for every UK boiler brand.

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Boiler fault code lookup for every UK brand

BOYLA helps homeowners and Gas Safe engineers decode boiler faults fast. Enter your brand and the code on the display to see what it means, the most likely causes, safe step-by-step checks, and when to call a professional — across Worcester Bosch, Vaillant, Baxi, Ideal, Glow-worm and more.

Plain-English meaningsWhat the code actually means, minus the jargon.
Step-by-step fixesClear DIY-safe checks versus jobs for an engineer.
Every UK brandFault codes, manuals and troubleshooting in one place.
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