BoilerFaultCodesTechnical description
Central heating NTC unplugged
What causes this fault?
This fault occurs when the boiler's internal computer can no longer detect a signal from the temperature sensors located on the main pipes. The most common reason is that the sensor has developed a hardware failure or the electrical wiring connecting it to the main control board has become loose or damaged. Without this connection, the boiler shuts down as a safety precaution because it cannot tell if the water is becoming dangerously hot.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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