What does the Baxi Megaflo E270 fault code mean?
The E270 fault code on a Baxi Megaflo indicates a domestic hot water (DHW) temperature fault, which typically means that the boiler is unable to maintain the desired temperature for hot water. This can lead to insufficient hot water supply for taps and showers.
Common Causes
- Faulty Temperature Sensor: The temperature sensor may be malfunctioning, causing incorrect readings and preventing the boiler from heating water properly.
- Blocked Heat Exchanger: A blockage in the heat exchanger can restrict water flow, leading to inadequate heating and 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 gas and electrical components that require professional handling. Attempting DIY repairs could be dangerous and may void your warranty.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the E270 fault could be around £150 to £250, primarily for replacing a faulty temperature sensor or cleaning a blocked heat exchanger. This estimate includes parts and labour costs typical for a qualified engineer.