What does the Ideal Logic Max F70 fault code mean?
The F70 fault code on the Ideal Logic Max indicates a calibration error with the central heating (CH) flow switch. This error suggests that the boiler is unable to accurately detect the flow of water through the heating system, which can prevent the boiler from operating correctly.
Common Causes
- Faulty Flow Switch: The flow switch may be malfunctioning or damaged, leading to incorrect readings.
- Blocked System: A blockage in the heating system can prevent proper water flow, causing the flow switch to register an error.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair this issue, as it involves gas and electrical components that require professional handling. Attempting to fix it yourself could be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F70 fault code is approximately £150 to £250. This includes the cost of replacing the flow switch and any necessary labour charges, reflecting the complexity of the repair.