While you wait for answers, we may have found some information which could help you.
Click here for Downstairs Sink Hotchaffoteaux brittony combi se 80?
Chaffoteaux Mx2 24 error 50?
My heating and hot water do not work and “A03” is flashing?
How can I fix my Chaffoteaux & Maury boiler?
chaffoteaux calydra 80 combi boiler?
pressure relief valve?