BoilerFaultCodesYour boiler has detected an electrical fault with the sensor that monitors water entering the system, which is preventing it from heating up correctly.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Short circuit on inlet sensor
What causes this fault?
This fault occurs when the electrical sensor responsible for measuring the temperature of water entering your boiler fails or suffers a short circuit. The most common reason is that the sensor's internal components have worn out over time, leading to an incorrect electrical signal that prevents the boiler from firing safely.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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