BoilerFaultCodesYour boiler has lost communication with its internal temperature sensor, meaning it cannot monitor heat levels and has shut down as a safety precaution.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: No signal from the temperature sensor at the heating block available – replace the temperature sensor, the connecting lead or the control unit
What causes this fault?
This fault occurs when the boiler's brain can no longer detect a signal from the sensor that monitors the heat of the water. The most common reason is that the sensor has physically failed or a wire has come loose, causing the boiler to shut down immediately to prevent overheating. In some cases, a fault within the main control board means it can no longer 'hear' the messages being sent by the sensor.
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 1076 W — 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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