Pump does not stop Medium

Saunier Duval Pump does not stop Fault Code

Also written as PUMPDOESNOTSTOP — same fault.

The Saunier Duval Pump does not stop fault code means: 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.. It appears on 1 Saunier Duval model in our database.

Book a service

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.
Typical repair cost £250-450 (including labour)

Engineer required

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

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Saunier Duval models that show the Pump does not stop fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Saunier Duval Pump does not stop fault code information on this page is sourced and cross-checked against the official Saunier Duval service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026