Medium
Tank Thermistor not in Tank on Potterton Promax HE Store

Your boiler has lost the connection to the temperature sensor inside your hot water tank, meaning it cannot accurately tell when the water is hot enough.

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

Tank Thermistor not in Tank

Engineer required

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

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Related fault codes

E110View →E119View →

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