Medium
4 07 on Ariston E-Combi Evo

Your boiler is struggling to 'read' the temperature in your home because the connection to your room thermostat has been interrupted or damaged.

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 circuit open/short circuit

Engineer required

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

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