What does the Baxi Megaflo E660 fault code mean?
The E660 fault code on a Baxi Megaflo indicates a central heating (CH) system configuration fault. This typically suggests that there is an issue with the setup or communication between the boiler and the heating system components.
Common Causes
- Incorrect System Configuration: The boiler may not be properly configured for the specific heating system it is connected to, leading to communication errors.
- Faulty Wiring or Connections: Damaged or loose wiring between the boiler and the heating system can cause the boiler to misinterpret system status, triggering the fault code.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves the boiler’s internal settings and potentially electrical components. Attempting to fix it yourself could lead to further complications or safety hazards.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an E660 fault could range from £150 to £300, depending on whether it requires reconfiguration or wiring repairs. This cost reflects the need for professional expertise and potential replacement parts.