High
PILOT WILL NOT STAY ALIGHT on Chaffoteaux Britony Duo 55

Your boiler is failing to keep its small starter flame lit, which prevents the main system from firing up to provide you with heating or hot water.

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.

Technical description

I) Thermocouple not working; II) Thermo-electric valve faulty; III) Gas pressure low/variable; IV) Terminal wrongly positioned; V) Badly assembled flue; VI) Gas pressure too hight

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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