BoilerFaultCodesYour boiler's internal computer is having trouble processing electrical signals from its various sensors.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Electronics/sensor/analogue-to-digital converter fault
What causes this fault?
This fault occurs when the boiler's main control board fails to correctly interpret the electrical signals coming from its internal sensors. It is usually caused by a critical electronic failure within the circuit board itself or a short circuit in the wiring that confuses the boiler's computer. In some cases, a faulty temperature sensor can send an erratic voltage that the system can no longer process safely.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like F.64 — 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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