High
E06 on Heatline Sargon 24

Your boiler is struggling to measure the temperature of your hot water, which usually means your taps will only run stone cold.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

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

Technical description

DHW thermistor fault: The domestic hot water NTC sensor is damaged or disconnected.

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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Related fault codes

E05View →

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