BoilerFaultCodesTechnical description
DHW sensor fault
What causes this fault?
This fault occurs when the internal sensor responsible for monitoring the temperature of your tap water stops sending a clear signal to the main control board. The most common reason is that the sensor has physically degraded or developed an electrical short, preventing the boiler from knowing how hot the water is. As a safety precaution, the boiler will stop heating your water to prevent it from reaching dangerous temperatures.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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