What does the Baxi 600 Series E350 fault code mean?
The E350 fault code on the Baxi 600 Series indicates a problem with the domestic hot water (DHW) chamber temperature. This fault suggests that the temperature within the DHW chamber is not reaching the expected levels, which can affect the performance of hot water delivery.
Common Causes
- Faulty DHW Sensor: The sensor may be malfunctioning, leading to incorrect temperature readings.
- Blocked Heat Exchanger: A blockage in the heat exchanger can prevent proper heat transfer, causing temperature issues.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair this fault, as it involves gas and electrical components that can be dangerous if handled improperly.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the E350 fault could range around £150 to £250, primarily due to the potential need for replacing the DHW sensor or cleaning the heat exchanger, which requires professional expertise.