Baxi · DUO TEC Boilers
The boiler has detected an unstable gas supply pressure, which can lead to inefficient operation or ignition problems.
Click steps to track your progress.
Check if other gas appliances in the property are working normally.
Ensure the main gas supply valve to the property is fully open.
If the instability persists, contact a qualified Gas Safe registered engineer to check the gas supply pressure to the boiler.