Medium
A7 on Worcester Bosch R30 HE Plus

Your boiler is struggling to accurately measure the temperature of the water used for your taps and shower, meaning it will likely stop producing hot water to prevent overheating.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Hot water NTC sensor defective.

Engineer required

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

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Related fault codes

A8View →

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