What does the Ideal Mini F75 fault code mean?
The F75 fault code on the Ideal Mini indicates a problem with the domestic hot water (DHW) system temperature, which may be due to a failure in the temperature sensor or a blockage in the system. This fault prevents the boiler from heating water to the required temperature for safe operation.
Common Causes
- Faulty Temperature Sensor: A malfunctioning sensor may provide incorrect readings, leading to the F75 error.
- Blocked Heat Exchanger: A blockage in the heat exchanger can restrict water flow, preventing proper 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 to fix it yourself may pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F75 fault could be around £150 to £250, depending on whether the temperature sensor needs replacing or if the heat exchanger requires cleaning or replacement.