What does the Baxi Megaflo E810 fault code mean?
The E810 fault code on a Baxi Megaflo indicates a problem with the domestic hot water (DHW) system efficiency. This typically suggests that the boiler is unable to maintain the desired temperature or flow rate for hot water delivery.
Common Causes
- Blocked Heat Exchanger: A build-up of limescale or debris can restrict water flow and heat transfer efficiency.
- Faulty Temperature Sensor: If the temperature sensor is malfunctioning, it may provide incorrect readings, leading to inefficient operation.
Can I fix it myself? (DIY)
It is advisable to call a Gas Safe Engineer to diagnose and repair this issue, as it may involve gas or electrical components that require professional handling.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the E810 fault could be around £150 to £250, primarily depending on whether the heat exchanger needs cleaning or replacement, which can be labour-intensive.