Medium
Pump does not stop on Saunier Duval Xeon 120 FF

Your boiler's water pump is failing to switch off after the heating has finished, which will gradually wear out the pump and may indicate an internal electrical fault.

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

Pump overrun facility failure. If pump continues after several minutes, faulty PCB.

Engineer required

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

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