Emergency
Pilot extinguishes on Chaffoteaux Challenger 50 OF

Your boiler has automatically shut down to protect itself from overheating, and the pilot light has gone out as a result.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

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

What the manual says

Manufacturer manual

The pilot will go off and the boiler will require manual re-setting. Re-establish the appliance by re-setting the high limit thermostat by pressing the red button on the electrical box.

From this model's manual
Verified against the Chaffoteaux Challenger 50 Of installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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