While you wait for answers, we may have found some information which could help you.
Click here for Boiler Light Covergas water heater chaffoteaux britony 11t (geyser ) 11 years old?
Chaffoteaux et Maury with no hot water?
My boiler won't light but will when we take the cover off ?
chaffoteaux brittony combi se 80?
How can I fix my boiler chaffoteaux&maury?
Chaffoteaux Mx2 24 error 50?