Medium
E 29 on Chaffoteaux Minima HE

Your boiler has lost the connection to the temperature sensor inside your home, so it currently does not know whether your rooms are warm or cold.

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

Room sensor open circuit

Engineer required

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

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