Pilot goes out Emergency

Chaffoteaux Pilot goes out Fault Code

Also written as PILOTGOESOUT — same fault.

The Chaffoteaux Pilot goes out fault code means: your boiler is failing to stay lit, which means it cannot safely heat your home or provide hot water.. It appears on 1 Chaffoteaux model in our database.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description: Pilot too small, injector blocked; Thermocouple/thermoelectric valve faulty, low MV output; Thermocouple loose; Terminal wrongly positioned causing re-circulation; Flue set wrongly fitted causing re-circulation; Fusible Link fused; Fusible link earthing out; Securing nuts loose; Insulation washers fitted incorrectly; Low meter pressure; Pilot flame too soft.
Typical repair cost £120-250 (including labour)

Engineer required

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

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Chaffoteaux models that show the Pilot goes out fault code

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

Source

Chaffoteaux Pilot goes out fault code information on this page is sourced and cross-checked against the official Chaffoteaux service / installation manuals for each affected model.

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