High
E15 on Biasi Antares Combi

Your boiler's internal thermometer that measures the temperature of the water flowing to your radiators has developed a fault and can no longer read the temperature correctly.

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

Heating delivery NTC probe error (short circuit / open circuit)

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

E16View →E05View →E06View →

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