What does the Ideal Mexico HE F75 fault code mean?
The F75 fault code on the Ideal Mexico HE indicates a problem with the domestic hot water (DHW) system, typically related to a failure in the flow sensor or a blockage in the system. This can prevent the boiler from heating water effectively, leading to a lack of hot water supply.
Common Causes
- Flow Sensor Failure: The flow sensor may be malfunctioning or blocked, preventing accurate readings of water flow.
- Blocked Heat Exchanger: A blockage in the heat exchanger can restrict water flow, impacting the boiler’s ability to heat water.
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.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F75 fault could be around £150 to £250, primarily depending on whether the flow sensor needs replacement or if the heat exchanger requires cleaning or repair.