Main burner does not light High

Saunier Duval Main burner does not light Fault Code

Q: What does the Saunier Duval Main burner does not light fault code mean?

Your boiler is failing to ignite because an internal electrical component responsible for releasing gas is not receiving a signal.

Q: How much does it cost to fix Saunier Duval error code Main burner does not light?

Typical repair cost for the Saunier Duval Main burner does not light fault is £180-350 including labour.

Also written as MAINBURNERDOESNOTLIGHT — same fault.

The Saunier Duval Main burner does not light fault code means: your boiler is failing to ignite because an internal electrical component responsible for releasing gas is not receiving a signal.. It appears on 1 Saunier Duval model in our database.

Technical description: Check continuity of main solenoid between EV2 and COM. If OK, replace multi-functional control. If no continuity, replace main solenoid.

Typical repair cost £180-350 (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 Main burner does not light fault code

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

Xeon 120 FF Repair: £180-350

Source

Saunier Duval Main burner does not light 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