What does the Baxi 600 Series E133 fault code mean?
The E133 fault code on the Baxi 600 Series indicates a flame failure, meaning the boiler is unable to detect a flame during operation. This can prevent the boiler from heating water and may require troubleshooting to identify the underlying issue.
Common Causes
- Blocked Flue: A blockage in the flue can prevent proper ventilation, leading to flame failure.
- Faulty Ignition Electrode: If the ignition electrode is damaged or dirty, it may not create a spark to ignite the gas.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for any gas or electrical issues. However, you can check the boiler pressure and reset the boiler if it has dropped below the recommended level.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an E133 fault could range from £100 to £250, depending on whether the issue is a simple flue blockage or requires replacing the ignition electrode.