What does the Baxi 600 Series E890 fault code mean?
The E890 fault code on the Baxi 600 Series indicates a flame failure during the domestic hot water (DHW) operation. This means that the boiler is unable to ignite or maintain a flame when attempting to heat water for taps or showers.
Common Causes
- Gas Supply Issue: Insufficient gas supply or a blockage in the gas line can prevent the boiler from igniting properly.
- Flame Sensor Fault: A malfunctioning flame sensor may fail to detect the flame, causing the boiler to shut down for safety reasons.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for any gas-related issues, including flame failure. Attempting to fix gas appliances without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the E890 fault could range from £150 to £300, depending on whether the issue is with the gas supply or requires replacement of the flame sensor. This cost reflects the need for professional service and potential parts replacement.