BoilerFaultCodesYour boiler's internal computer has encountered a communication error or a software fault and cannot operate correctly.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: System fault boiler electronics / basic controller
What causes this fault?
This fault occurs when the boiler's internal components stop talking to each other, similar to a computer crashing. It is usually caused by a glitch in the main control board or a loose connection in the wiring that prevents the system from booting up safely.
DIY fix possible
Press the Reset button on the boiler's front display panelTurn off the power to the boiler at the fused spur switch, wait 30 seconds, and turn it back onCheck if any recent electrical work in the home might have caused a power surge
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A boiler cover plan would cover faults like 262 — no call-out fees, no surprises.
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Could it be time for a new boiler?
If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.
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