What does the Baxi Megaflo E750 fault code mean?
The E750 fault code on a Baxi Megaflo indicates a service fault within the domestic hot water (DHW) system. This typically suggests that there is an issue requiring attention to ensure the proper functioning of the hot water supply.
Common Causes
- Faulty DHW Sensor: A malfunctioning sensor can lead to incorrect temperature readings, triggering the fault code.
- Blocked Heat Exchanger: A blockage in the heat exchanger can prevent efficient heat transfer, causing the system to fail.
Can I fix it myself? (DIY)
If you are comfortable with basic maintenance, you can check the pressure gauge and reset the boiler if necessary. However, for any gas or electrical issues, it is crucial to call a qualified Gas Safe Engineer to avoid safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the E750 fault could range from £150 to £300, depending on whether a sensor replacement or heat exchanger cleaning is required. This estimate reflects the cost of parts and labour in the current market.