BoilerFaultCodesYour boiler has no power, which means it cannot turn on to provide heating or hot water.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: No mains voltage to the boiler, blown EMC filter, or external fault.
What causes this fault?
This fault occurs when the electrical supply to the boiler is interrupted or fails to reach the internal control system. The most common reason is a blown fuse or a failed component like the EMC filter that has blocked the incoming power to prevent further electrical damage. It can also be caused by an external issue, such as a tripped circuit breaker in your home's main fuse box.
DIY fix possible
Check if other appliances are working to rule out a general power cutCheck your home fuse box for any tripped switchesEnsure the boiler's power switch or fused spur next to the boiler is turned on
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A boiler cover plan would cover faults like Mains On neon not lit — no call-out fees, no surprises.
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Ideal Response FF80 is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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