What does the Baxi Megaflo E800 fault code mean?
The E800 fault code on a Baxi Megaflo indicates a central heating (CH) system performance fault. This typically suggests that the boiler is not operating efficiently, which can lead to inadequate heating or hot water supply.
Common Causes
- Low Water Pressure: Insufficient water pressure in the system can hinder proper circulation and heating performance.
- Blocked System Components: Blockages in pipes, radiators, or the heat exchanger can restrict flow and affect system efficiency.
Can I fix it myself? (DIY)
If you suspect low water pressure, you can check the pressure gauge on the boiler and refill the system if necessary. However, for any gas or electrical issues, it is crucial to call a Gas Safe Engineer to ensure safety and compliance with regulations.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing an E800 fault could range from £150 to £300, depending on whether it requires a simple pressure adjustment or more extensive work like flushing the system or replacing components.