What does the Baxi 600 Series E930 fault code mean?
The E930 fault code on the Baxi 600 Series indicates a blockage in the flue system, which is preventing the proper venting of flue gases. This issue can lead to unsafe operating conditions and requires immediate attention to ensure safe boiler operation.
Common Causes
- Blocked Flue Terminal: Debris, such as leaves or snow, may obstruct the flue terminal, preventing proper ventilation.
- Internal Flue Blockage: A build-up of soot or other materials within the flue can restrict airflow and cause the E930 fault code to appear.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer to diagnose and resolve this issue, as it involves gas and safety risks. Attempting to fix flue blockages without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the E930 fault code may range from £150 to £300, depending on whether the blockage is external or internal. Costs may include cleaning the flue or replacing components if necessary.