How much does it cost to fix Saunier Duval error code Spark does not stop?

Typical repair cost for the Saunier Duval Spark does not stop fault is £200-450 including labour.

Spark does not stop High

Saunier Duval Spark does not stop Fault Code

Q: What does the Saunier Duval Spark does not stop fault code mean?

Your boiler is struggling to confirm that the pilot light has successfully ignited, causing it to keep clicking as if trying to start repeatedly.

Also written as SPARKDOESNOTSTOP — same fault.

The Saunier Duval Spark does not stop fault code means: your boiler is struggling to confirm that the pilot light has successfully ignited, causing it to keep clicking as if trying to start repeatedly.. It appears on 1 Saunier Duval model in our database.

Technical description: With pilot lit, check electrical supply polarity and electrode/connection contact. If satisfactory replace PCB.

Typical repair cost £200-450 (including labour)

Engineer required

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

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

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

Xeon 120 FF Repair: £200-450

Source

Saunier Duval Spark 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