What does the Baxi Megaflo E680 fault code mean?
The E680 fault code on a Baxi Megaflo indicates a calibration issue within the central heating (CH) system. This typically suggests that the boiler is unable to properly adjust or maintain the desired temperature settings.
Common Causes
- Faulty Temperature Sensor: A malfunctioning sensor may provide incorrect readings, leading to calibration errors.
- Incorrect System Pressure: If the pressure in the heating system is too low or too high, it can affect the boiler’s ability to calibrate correctly.
Can I fix it myself? (DIY)
It is advisable to check the system pressure and ensure it is within the manufacturer’s recommended range. If the pressure is low, you can top it up using the filling loop. However, for any gas or electrical issues, it is crucial to call a Gas Safe Engineer.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the E680 fault could range around £150 to £250, primarily depending on whether the temperature sensor needs replacement or if adjustments to the system pressure are required.