BoilerFaultCodesYour boiler has encountered a permanent safety lockout and has stopped working to protect itself.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Final fault, e.g.: primary NTC, water pressure, fan/flue problem, ignition/lockout problem
What causes this fault?
This fault occurs when the boiler's internal safety sensors detect a critical issue that prevents safe operation, such as the system losing water pressure or the burner failing to light correctly. It acts as a final safety barrier, often triggered by a failing temperature sensor or a hardware component like the fan or ignition system reaching the end of its life.
DIY fix possible
Check if the water pressure gauge is between 1 and 1.5 barRotate the mode selector switch to 'OFF/RESET' for 5 secondsSwitch the dial back to the previous setting to see if the boiler restarts
Find a Gas Safe engineer
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A boiler cover plan would cover faults like RED LED On every 0.5-secs — no call-out fees, no surprises.
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Vokera Rain 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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