What does the Baxi Megaflo E310 fault code mean?
The E310 fault code on a Baxi Megaflo indicates a safety thermostat fault, which typically means that the boiler has detected an unsafe temperature condition. This safety feature is designed to prevent overheating and potential damage to the system.
Common Causes
- Faulty Thermostat: The thermostat may be malfunctioning or stuck, causing incorrect temperature readings.
- Overheating: A buildup of limescale or a blocked heat exchanger can lead to overheating, triggering the safety thermostat.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves safety components that require professional handling. Attempting to fix it yourself could pose serious risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the E310 fault could be around £150-£250, primarily due to the need for a replacement thermostat and potential labour costs. This estimate reflects the complexity of diagnosing and fixing safety-related issues.