Chaffoteaux BURNER STAYS ON Fault Code

Also written as BURNERSTAYSON — same fault.

The Chaffoteaux BURNER STAYS ON fault code means: your boiler's internal burner is failing to switch off even when you are not using hot water or heating, which suggests a mechanical component is stuck or blocked.. It appears on 3 Chaffoteaux models in our database.

Technical description: i) Air in pipework, ii) Gas valve stays open, iii) Venturi blocked, iv) Dirt on gas valve facing, v) Loose jumper on house stop cock tap, vi) Dirt or foreign matter in water section