What does the Baxi Megaflo E690 fault code mean?
The E690 fault code on a Baxi Megaflo indicates a maintenance issue within the domestic hot water (DHW) system. This typically suggests that there may be a problem with the system’s components or settings that requires attention.
Common Causes
- Blocked Filters: Debris or sediment accumulation in filters can restrict water flow, leading to system inefficiencies.
- Faulty Sensors: Malfunctioning temperature or pressure sensors may incorrectly signal issues, triggering the fault code.
Can I fix it myself? (DIY)
While some minor maintenance tasks can be performed, it is highly recommended to call a Gas Safe Engineer for any gas or electrical issues. Attempting to fix complex problems without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the E690 fault could range from £150 to £300, depending on whether filters need cleaning or sensors require replacement. This estimate includes parts and labour for a qualified engineer.