High
Pilot will not light (2) on Chaffoteaux Flexiflame 140

Your boiler is struggling to start because there is still some air trapped in the gas pipes, preventing the pilot light from igniting.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Gas supply pipes not purged of air.

From this model's manual
Verified against the Chaffoteaux Boiler Flexiflame 140 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 high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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