BoilerFaultCodes.com
E32 High Lockout

Your boiler is unable to read the temperature of the water coming out of your taps, which usually means your hot water will stop working or become unreliable.

Call an engineer soon

Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Open circuit DHW temperature sensor

What causes this fault?

This fault occurs when the boiler's control board loses its connection to the sensor that measures hot water temperature. The most common reason is that the sensor itself has failed internally or the electrical wires connecting it have become loose or damaged. Without this data, the boiler cannot safely heat your water to the correct temperature and shuts down the hot water function as a precaution.

Typical repair cost £90-160 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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