What does the Baxi Megaflo E890 fault code mean?
The E890 fault code on a Baxi Megaflo indicates a warranty fault related to the domestic hot water (DHW) system. This typically suggests a malfunction that may require professional assessment or repair under warranty conditions.
Common Causes
- Faulty DHW Sensor: A malfunctioning sensor can lead to incorrect temperature readings, triggering the fault code.
- Internal Component Failure: Issues with internal components such as the heat exchanger or valves can disrupt the DHW system’s operation.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for any repairs related to gas or electrical components. Attempting to fix these issues without proper qualifications can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the E890 fault could range from £150 to £300, depending on whether the issue is with the DHW sensor or other internal components. This cost includes parts and labour for a qualified engineer.